Some of the "factors" so easily dismissed by those who prefer to focus on a minuscule percentage of atmospheric CO2.
The Ridiculousness Continues – Climate Complexity Compiled
Posted on January 21, 2012 by justthefactswuwt
By WUWT regular “Just The Facts”
With the help of an array of WUWT reader comments on this thread and several others documented within, I’ve been compiling a summary of all potential climatic variables in order to build a conceptual map of Earth’s climate system. The goals of this exercise include; To gain a bigger picture understanding and perspective of Earth’s climate system. To demonstrate that Earth’s climate system is a ridiculously complex, continually evolving and sometimes chaotic beast, with the plethora of variables, many interdependencies and an array of feedbacks, both positive and negative. To highlight the challenges associated with accurately measuring the current state, as well as predicting the trajectory and likely future state of Earth’s climate system many decades into the future. To build the WUWT Potential Climatic Variables Reference Page. To lay the conceptual groundwork for the WUWT Likely Climatic Variables Reference Page.
Your help in completing this exercise would be most appreciated. Please take a look through the list below and let me know if you have any additions, suggestions or corrections. For those of you who’ve already read this list, it has grown significantly, especially the later portions. Please pay particular attention to Section 9. Albedo, as most of the content is new, thus it may need more work, and I’m also trying out a different linking/reference format. Your input on preferences between the linking/reference format in Section 9, versus the rest of the document would be most appreciated.
Note: The list below is an evolving document that continues to undergo significant revisions and improvements based upon crowdsourcing input of an array of WUWT contributors. Additionally, this list was posted in a prior article and in comments on WUWT a few times previously, receiving input from a vast number of contributors. This thread, along with these precursor threads will serve as the bibliography for the forthcoming WUWT Potential Climatic Variables Reference Page.
Wikipedia Note: The list relies heavily upon Wikipedia, due to the fact that it is the only source that offers reasonably coherent content on such broad range of subjects. However, there are know issues with Wikpedia’s content, especially biases in their climate articles. As such, please take care to view any Wikipedia articles with a critical eye and check Wikipedia’s references to evaluate the credibility of their sources. Additionally, in comments, please provide your suggestions of articles from alternate sources that can be added to this list in order to help readers to easily verify the veracity of the Wikipedia articles within.
1. Earth’s Rotational Energy;
http://en.wikipedia.org/wiki/Rotational_energyhttp://en.wikipedia.org/wiki/Earth%27s_rotationhttp://www.physicalgeography.net/fundamentals/6h.htmlresults in day and night;
http://wiki.answers.com/Q/Why_does_rotation_cause_day_and_nightcauses the Coriolis Effect;
http://en.wikipedia.org/wiki/Coriolis_effectimparts Planetary Vorticity on the oceans;
http://oceanworld.tamu.edu/resources/ocng_textbook/chapter12/chapter12_01.htmand manifests as Ocean Gyres;
http://en.wikipedia.org/wiki/Ocean_gyrethe Antarctic Circumpolar Current;
http://en.wikipedia.org/wiki/Antarctic_Circumpolar_Currenthttp://en.wikipedia.org/wiki/File:Conveyor_belt.svgArctic Ocean Circulation;
http://www.whoi.edu/page.do?pid=12455&tid=441&cid=47170&ct=61&article=20727http://www.john-daly.com/polar/flows.jpgcan result in the formation of Polynya;
http://en.wikipedia.org/wiki/Polynyaand causes the Equatorial Bulge:
http://en.wikipedia.org/wiki/Equatorial_bulgeEarth’s Rotational Energy influences Atmospheric Circulation;
http://en.wikipedia.org/wiki/Atmospheric_circulationincluding the Jet Stream;
http://en.wikipedia.org/wiki/Jet_streamWesterlies;
http://en.wikipedia.org/wiki/WesterliesTradewinds;
http://en.wikipedia.org/wiki/Trade_windGeostrophic Wind;
http://en.wikipedia.org/wiki/Geostrophic_windSurface Currents;
http://www.windows2universe.org/earth/Water/ocean_currents.htmlhttp://en.wikipedia.org/wiki/Ocean_currentthrough Ekman Transport;
http://en.wikipedia.org/wiki/Ekman_transporthttp://oceanmotion.org/html/background/ocean-in-motion.htmRosby Waves;
http://en.wikipedia.org/wiki/Rossby_wavewhich “are principally responsible for the Brewer-Dobson circulation”;
http://en.wikipedia.org/wiki/Brewer-Dobson_circulationhttp://www.ccpo.odu.edu/~lizsmith/SEES/ozone/class/Chap_6/6_4.htmTropical Cyclones;
http://en.wikipedia.org/wiki/Tropical_cyclonepossibly Tornadoes;
http://en.wikipedia.org/wiki/Tornadohowever, Windows To The Universe states that, “because there are records of anticyclonic tornadoes, scientists don’t think that the Coriolis Effect causes the rotations.”;
http://www.windows2universe.org/earth/Atmosphere/tornado/formation.htmland Polar Vortices;
http://en.wikipedia.org/wiki/Polar_vortexhttp://wattsupwiththat.com/reference-pages/polar-vortex/which “are caused when an area of low pressure sits at the rotation pole of a planet. This causes air to spiral down from higher in the atmosphere, like water going down a drain.”
http://www.universetoday.com/973/what-venus-and-saturn-have-in-common/Here’s an animation of the Arctic Polar Vortex in Winter 2008 – 09:
When a Polar Vortex splits or breaks down it can cause a Sudden Stratospheric Warming:
http://en.wikipedia.org/wiki/Sudden_stratospheric_warminghttp://earthobservatory.nasa.gov/IOTD/view.php?id=36972Earth’s Rotational Energy influences Plate Tectonics;
http://en.wikipedia.org/wiki/Plate_tectonics“By analyzing the minute changes in travel times and wave shapes for each doublet, the researchers concluded that the Earth’s inner core is rotating faster than its surface by about 0.3-0.5 degrees per year.
That may not seem like much, but it’s very fast compared to the movement of the Earth’s crust, which generally slips around only a few centimeters per year compared to the mantle below, said Xiaodong Song, a geologist at the University of Illinois at Urbana-Champaign and an author on the study.
http://www.livescience.com/9313-earth-core-rotates-faster-surface-study-confirms.htmlThe surface movement is called plate tectonics. It involves the shifting of about a dozen major plates and is what causes most earthquakes”;
http://en.wikipedia.org/wiki/EarthquakeVolcanoes;
http://en.wikipedia.org/wiki/Volcanoand Mountain Formation;
http://en.wikipedia.org/wiki/Mountain_formationwhich can influence the creation of Atmospheric Waves:
http://en.wikipedia.org/wiki/Atmospheric_waveLastly, Rotational Energy is the primary driver of Earth’s Dynamo;
http://en.wikipedia.org/wiki/Dynamo_theorywhich generates Earth’s Magnetic Field;
http://en.wikipedia.org/wiki/Earth%27s_magnetic_fieldand is primarily responsible for the Earthy behaviors of the Magnetosphere;
http://en.wikipedia.org/wiki/Magnetospherewith certain secular variations in Earth’s magnetic field originating from ocean flow/circulation;
http://news.nationalgeographic.com/news/2009/06/090622-earths-core-dynamo.htmlhttp://iopscience.iop.org/1367-2630/11/6/063015/fulltextthough Leif Svalgaard notes that these are minor variations, as the magnetic field originating from ocean flow/circulation “is 1000 times smaller than the main field generated in the core.”
http://wattsupwiththat.com/2011/06/30/earths-climate-system-is-ridiculously-complex-with-draft-link-tutorial/#comment-707971Earth Core Changes:
http://physicsworld.com/cws/article/news/42580appear “to be generated in the Earth’s core by a dynamo process, associated with the circulation of liquid metal in the core, driven by internal heat sources”. “Molten iron flowing in the outer core generates the Earth’s geodynamo, leading to a planetary-scale magnetic field. Beyond this, though, geophysicists know very little for certain about the field, such as its strength in the core or why its orientation fluctuates regularly. Researchers do suspect, however, that field variations are strongly linked with changing conditions within the molten core.” These core changes
influence the Magnetosphere;
http://en.wikipedia.org/wiki/Magnetosphereincluding movement of the Geomagnetic Poles:
http://www.ngdc.noaa.gov/geomag/GeomagneticPoles.shtmlhttp://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.htmlAlso of note, “Over millions of years, [Earth's] rotation is significantly slowed by gravitational interactions with the Moon: see tidal acceleration.
http://en.wikipedia.org/wiki/Tidal_acceleration“Tidal acceleration is an effect of the tidal forces between an orbiting natural satellite (e.g. the Moon), and the primary planet that it orbits (e.g. the Earth). The “acceleration” is usually negative, as it causes a gradual slowing and recession of a satellite in a prograde orbit away from the primary, and a corresponding slowdown of the primary’s rotation. The process eventually leads to tidal locking of first the smaller, and later the larger body. The Earth-Moon system is the best studied case.”
“The presence of the moon (which has about 1/81 the mass of the Earth), is slowing Earth’s rotation and lengthening the day by about 2 ms every one hundred years.”
Length of Day;
http://en.wikipedia.org/wiki/Day_lengthEarth’s rotation is slowing “due to a transfer of Earth’s rotational momentum to the Moon’s orbital momentum as tidal friction slows the Earth’s rotation. That increase in the Moon’s speed is causing it to slowly recede from Earth (about 4 cm per year), increasing its orbital period and the length of a month as well.” “The slowing rotation of the Earth results in a longer day as well as a longer month. Once the length of a day equals the length of a month, the tidal friction mechanism will cease. (ie. Once your speed on the track matches the speed of the horses, you can’t gain any more speed with your lasso trick.) That’s been projected to happen once the day and month both equal about 47 (current) days, billions of years in the future. If the Earth and Moon still exist, the Moon’s distance will have increased to about 135% of its current value.”
http://www.physlink.com/education/askexperts/ae695.cfm“However some large scale events, such as the 2004 Indian Ocean earthquake, have caused the rotation to speed up by around 3 microseconds.[21] Post-glacial rebound, ongoing since the last Ice age, is changing the distribution of the Earth’s mass thus affecting the Moment of Inertia of the Earth and, by the Conservation of Angular Momentum, the Earth’s rotation period.”
http://en.wikipedia.org/wiki/Earth%27s_rotation2. Orbital Energy, Orbital Period, Elliptical Orbits (Eccentricity), Tilt (Obliquity) and Wobble (Axial precession):
http://en.wikipedia.org/wiki/Specific_orbital_energyhttp://en.wikipedia.org/wiki/Synodichttp://www.physicalgeography.net/fundamentals/6h.htmlcreates Earth’s seasons;
http://en.wikipedia.org/wiki/Seasonwhich drives annual changes in Arctic Sea Ice;
and Antarctic Sea Ice;
the freezing and melting of which helps to drive the Thermohaline Circulation;
http://en.wikipedia.org/wiki/Thermohaline_circulationand can result in the formation of Polynyas:
http://en.wikipedia.org/wiki/PolynyaEarth’s orbit around the Sun, Earth’s tilt, Earth’s wobble and the Moon’s orbit around Earth, Earth’s Rotation, and the gravity of the Moon, Sun and Earth, act in concert to determine the constantly evolving Tidal Force on Earth:
http://en.wikipedia.org/wiki/Tidal_forceThis Tidal Force is influenced by variations in Lunar Orbit;
http://en.wikipedia.org/wiki/Orbit_of_the_Moonas seen in the Lunar Phases;
http://en.wikipedia.org/wiki/Lunar_phaseLunar Precession;
http://en.wikipedia.org/wiki/Lunar_precessionLunar Node;
http://en.wikipedia.org/wiki/Lunar_nodeSaros cycles;
http://en.wikipedia.org/wiki/Saros_cycleand Inex cycles:
http://en.wikipedia.org/wiki/InexThe combined cycles of the Saros and Inex Cycles can be visualized here:
http://eclipse.gsfc.nasa.gov/SEsaros/image/SEpanoramaGvdB-big.JPGOver longer time frames changes to Earth’s orbit, tilt and wobble called Milankovitch cycles;
http://en.wikipedia.org/wiki/Milankovitch_cyclesmay be responsible for the periods of Glaciation (Ice Ages);
http://www.homepage.montana.edu/~geol445/hyperglac/time1/milankov.htmthat Earth has experienced for the last several million years of its climatic record:
http://en.wikipedia.org/wiki/Ice_ageAlso of note, over very long time frames, “the Moon is spiraling away from Earth at an average rate of 3.8 cm per year”;
http://en.wikipedia.org/wiki/Lunar_distance_%28astronomy%29http://curious.astro.cornell.edu/question.php?number=1243. Gravitation:
http://en.wikipedia.org/wiki/GravitationThe gravity of the Moon, Sun and Earth, Earth’s rotation, Earth’s orbit around the Sun, Earth’s tilt, Earth’s wobble and the Moon’s orbit around Earth act in concert to determine the constantly evolving Tidal Force on Earth:
http://en.wikipedia.org/wiki/Tidal_forceThis tidal force results in that result in Earth’s Ocean Tide;
http://en.wikipedia.org/wiki/Tidehttp://www.themcdonalds.net/richard/astro/papers/602-tides-web.pdfAtmospheric Tide;
http://en.wikipedia.org/wiki/Atmospheric_tideEarth Tide;
http://en.wikipedia.org/wiki/Earth_tideand Magma Tide:
http://www.springerlink.com/content/h7005r0273703250/Earth’s Gravity;
http://en.wikipedia.org/wiki/Convection#Gravitational_or_buoyant_convectionhttp://visibleearth.nasa.gov/view_rec.php?id=205in concert with Tidal Forces, influence Earth’s Ocean Circulation;
http://www.eoearth.org/article/Ocean_circulationwhich influences Oceanic Oscillations including El Niño/La Niña;
http://en.wikipedia.org/wiki/El_Ni%C3%B1o-Southern_Oscillationthe Pacific Decadal Oscillation (PDO);
http://en.wikipedia.org/wiki/Pacific_Decadal_Oscillationthe Atlantic Multi-Decadal Oscillation (AMO);
http://en.wikipedia.org/wiki/Atlantic_Multidecadal_Oscillationthe Indian_Ocean_Dipole (IOD)/Indian Ocean Oscillation (IOO) and;
http://en.wikipedia.org/wiki/Indian_Ocean_Dipolecan result in the formation of Polynyas:
http://en.wikipedia.org/wiki/PolynyaGravity Waves;
http://en.wikipedia.org/wiki/Gravity_wavewhich may be partially responsible for the Quasi-Biennial Oscillation (QBO);
http://en.wikipedia.org/wiki/Quasi-biennial_oscillation“on an air–sea interface are called surface gravity waves or Surface Waves”;
http://en.wikipedia.org/wiki/Surface_wave“while internal gravity waves are called Inertial Waves”:
http://en.wikipedia.org/wiki/Inertial_waves“Rosby Waves;
http://en.wikipedia.org/wiki/Rossby_wavesGeostrophic Currents
http://en.wikipedia.org/wiki/Geostrophicand Geostrophic Wind
http://en.wikipedia.org/wiki/Geostrophic_windare examples of inertial waves. Inertial waves are also likely to exist in the core of the Earth”
Earth’s gravity is the primary driver of Plate Tectonics;
http://en.wikipedia.org/wiki/Plate_tectonics“The Slab Pull;
http://en.wikipedia.org/wiki/Slab_pullforce is a tectonic plate force due to subduction. Plate motion is partly driven by the weight of cold, dense plates sinking into the mantle at trenches. This force and the slab suction force account for most of the overall force acting on plate tectonics, and the Ridge Push;
http://en.wikipedia.org/wiki/Ridge_pushforce accounts for 5 to 10% of the overall force.”
Isostasy also exists whereby a “state of gravitational equilibrium between the earth’s lithosphere and asthenosphere such that the tectonic plates “float” at an elevation which depends on their thickness and density.”
http://en.wikipedia.org/wiki/IsostasyPlate Tectonics drive “cycles of ocean basin growth and destruction, known as Wilson cycles;
http://csmres.jmu.edu/geollab/fichter/Wilson/Wilson.htmlinvolving continental rifting;
http://en.wikipedia.org/wiki/Riftseafloor-spreading;
http://en.wikipedia.org/wiki/Seafloor_spreadingsubduction;
http://en.wikipedia.org/wiki/Subductionand collision.”:
http://en.wikipedia.org/wiki/Continental_collision“Climate change on ultra-long time scales (tens of millions of years) are more than likely connected to plate tectonics.”
“Through the course of a Wilson cycle continents collide and split apart, mountains are uplifted and eroded, and ocean basins open and close. The re-distribution and changing size and elevation of continental land masses may have caused climate change on long time scales”;
http://www.pbs.org/wgbh/nova/ice/chill.htmla process called the Supercontinent Cycle:
http://en.wikipedia.org/wiki/Supercontinent_cycleEarth’s gravity is responsible for Katabatic Wind:
http://en.wikipedia.org/wiki/Katabatic_wind4. Solar Energy;;
http://en.wikipedia.org/wiki/Solar_energyresults is Solar Radiation/Sunlight;
http://en.wikipedia.org/wiki/Solar_radiationwhich varies based upon 11 and 22 year cycles:
http://en.wikipedia.org/wiki/Solar_cycleTotal Solar Irradiance (TSI);
http://www.ngdc.noaa.gov/stp/solar/solarirrad.htmlappears to fluctuate “by approximately 0.1% or about 1.3 Watts per square meter (W/m2) peak-to-trough during the 11-year sunspot cycle”:
http://en.wikipedia.org/wiki/Solar_variationSolar Energy also drives the Hydrological/Water Cycle;
http://en.wikipedia.org/wiki/Hydrological_cyclewithin the Hydrosphere;
http://en.wikipedia.org/wiki/Hydrosphereas Total Solar Irradiance (TSI) causes evaporation;
http://en.wikipedia.org/wiki/Evaporationthat drives Cloud formation;
http://en.wikipedia.org/wiki/Cloudresults in Precipitation;
http://en.wikipedia.org/wiki/Precipitation_%28meteorology%29that results in the Water Distribution on Earth;
http://en.wikipedia.org/wiki/Water_distribution_on_Earthcreates surface Runoff;
http://en.wikipedia.org/wiki/Runoff_%28water%29which result in Rivers;
http://en.wikipedia.org/wiki/Riverand drives Erosion:
http://en.wikipedia.org/wiki/ErosionSolar energy is also “The driving force behind atmospheric circulation is solar energy, which heats the atmosphere with different intensities at the equator, the middle latitudes, and the poles.”
http://www.scienceclarified.com/As-Bi/Atmospheric-Circulation.htmlAtmospheric Circulation;
http://en.wikipedia.org/wiki/Atmospheric_circulationincludes Hadley Cells;
http://en.wikipedia.org/wiki/Hadley_cellFerrel Cells;
http://en.wikipedia.org/wiki/Atmospheric_circulation#Ferrel_cellPolar Cells;
http://en.wikipedia.org/wiki/Polar_cellsall of which help to create Wind;
http://en.wikipedia.org/wiki/Windthat influence Surface Currents;
http://www.windows2universe.org/earth/Water/ocean_currents.htmlhttp://en.wikipedia.org/wiki/Ocean_currentthrough Ekman Transport;
http://en.wikipedia.org/wiki/Ekman_transporthttp://oceanmotion.org/html/background/ocean-in-motion.htmand also cause Langmuir circulations
http://en.wikipedia.org/wiki/Langmuir_circulationSolar energy drives the Brewer Dobson Circulation;
http://en.wikipedia.org/wiki/Brewer-Dobson_circulationwhich influences Polar Vortices:
http://en.wikipedia.org/wiki/Polar_vortexhttp://wattsupwiththat.com/reference-pages/polar-vortex/Atmospheric Waves;
http://en.wikipedia.org/wiki/Atmospheric_waveincluding Atmospheric Tides;
http://en.wikipedia.org/wiki/Atmospheric_tideevaporation and condensation that may help to drive changes in Atmospheric Pressure:
http://en.wikipedia.org/wiki/Atmospheric_pressurehttp://www.atmos-chem-phys-discuss.net/10/24015/2010/acpd-10-24015-2010.pdfand Atmospheric Escape;
http://en.wikipedia.org/wiki/Atmospheric_escapeSolar Ultraviolet (UV) radiation;
http://en.wikipedia.org/wiki/Ultravioletappears to vary by approximately 10% during the solar cycle;
http://www.nasa.gov/topics/solarsystem/features/solarcycle-sorce.htmlhas been hypothesized to influence Earth’s climate;
http://wattsupwiththat.com/2011/04/05/courtillot-on-the-solar-uv-climate-connection/however Leif Svalgaard argues that,
This is well-trodden ground. Nothing new to add, just the same old, tired arguments. Perhaps a note on EUV: as you can see here (slide 13)
http://lasp.colorado.edu/sorce/news/2008ScienceMeeting/doc/Session1/S1_03_Kopp.pdf the energy in the EUV band [and other UV bands] is very tiny; many orders of magnitude less than what shines down on our heads each day. So a larger solar cycle variation of EUV does not make any significant difference in the energy budget.
http://wattsupwiththat.com/2011/04/05/courtillot-on-the-solar-uv-climate-connection/#comment-636477Additionally variations in Ultraviolet (UV) radiation may influence the break down of Methane;
(Source TBD)
Infrared Radiation;
http://en.wikipedia.org/wiki/InfraredSolar – Wind;
http://science.nasa.gov/science-news/science-at-nasa/1999/ast13dec99_1/Solar – Coronal Holes;
http://helios.gsfc.nasa.gov/chole.htmlSolar – Solar Energetic Particles (SEP);
http://helios.gsfc.nasa.gov/sep.htmlSolar – Coronal Mass Ejection;
http://www.esa.int/esaSC/SEMF75BNJTF_index_0.htmlhttp://www.ratedesi.com/video/v/8AuCE_NNEaM/Sun-Erupts-to-Life-Unleashes-a-Huge-CME-on-13-April-2010Solar Magnetosphere Breach;
Solar Polar Field Reversal;
http://science.nasa.gov/science-news/science-at-nasa/2001/ast15feb_1/Solar Sector Boundary;
http://science.nasa.gov/heliophysics/focus-areas/magnetosphere-ionosphere/Grand Minimum;
Leif Svalgaard says: February 6, 2011 at 8:26 pm
If L&P are correct and sunspots become effectively] invisible [not gone] it might mean another Grand Minimum lasting perhaps 50 years. During this time the solar cycle is still operating, cosmic rays are still modulated, and the solar wind is still buffeting the Earth.”
“It will lead to a cooling of a couple of tenths of a degree.”
Solar Influences on Climate:
http://www.leif.org/EOS/2009RG000282.pdfStatistical issues about solar–climate relations
http://www.leif.org/EOS/Yiou-565-2010.pdf5. Geothermal Energy;
http://en.wikipedia.org/wiki/Geothermal_energyinfluences Earth’s climate especially when released by Volcanoes;
http://en.wikipedia.org/wiki/Volcano“which are generally found where tectonic plates are diverging;
http://en.wikipedia.org/wiki/Divergent_boundaryor converging”;
http://en.wikipedia.org/wiki/Convergent_boundaryhowever, “intraplate volcanism has also been postulated to be caused by mantle plumes”:
http://en.wikipedia.org/wiki/Mantle_plume“These so-called “hotspots”;
http://en.wikipedia.org/wiki/Hotspot_%28geology%29for example Hawaii, are postulated to arise from upwelling diapirs;
http://en.wikipedia.org/wiki/Diapirfrom the core-mantle boundary, 3,000 km deep in the Earth.”
Volcanoes have been shown to influence Earth’s climate;
http://www.geology.sdsu.edu/how_volcanoes_work/climate_effects.htmlhttp://www.longrangeweather.com/global_temperatures.htmincluding in the infamous Year Without a Summer;
http://en.wikipedia.org/wiki/Year_Without_a_Summerwhich was partially caused by the 1815 eruption of Mount Tambora;
http://en.wikipedia.org/wiki/1815_eruption_of_Mount_Tamboraand is called a Volcanic Winter:
http://en.wikipedia.org/wiki/Volcanic_winter“Volcanic Ash;
http://en.wikipedia.org/wiki/Volcanic_ashparticles have a maximum residence time in the troposphere of a few weeks.
The finest Tephera;
http://en.wikipedia.org/wiki/Tephraremain in the stratosphere for only a few months, they have only minor climatic effects, and they can be spread around the world by high-altitude winds. This suspended material contributes to spectacular sunsets.
“The greatest volcanic impact upon the earth’s short term weather patterns is caused by sulfur dioxide gas;”
http://en.wikipedia.org/wiki/Sulfur_dioxide“In the cold lower atmosphere, it is converted to Sulfuric Acid;
http://en.wikipedia.org/wiki/Sulfuric_acidsulfuric acid by the sun’s rays reacting with stratospheric water vapor to form sulfuric acid aerosol layers. The aerosol remains in suspension long after solid ash particles have fallen to earth and forms a layer of sulfuric acid droplets between 15 to 25 kilometers up. Fine ash particles from an eruption column fall out too quickly to significantly cool the atmosphere over an extended period of time, no matter how large the eruption.
Sulfur aerosols last many years, and several historic eruptions show a good correlation of sulfur dioxide layers in the atmosphere with a decrease in average temperature decrease of subsequent years. The close correlation was first established after the 1963 eruption of Agung volcano in Indonesia when it was found that sulfur dioxide reached the stratosphere and stayed as a sulfuric acid aerosol.
Without replenishment, the sulfuric acid aerosol layer around the earth is gradually depleted, but it is renewed by each eruption rich in sulfur dioxide. This was confirmed by data collected after the eruptions of El Chichon, Mexico (1982) and Pinatubo, Philippines (1991), both of which were high-sulfur compound carriers like Agung, Indonesia.”
http://volcanology.geol.ucsb.edu/gas.htmThere is also some evidence that if “volcanic activity was high enough, then a water vapor anomaly would be introduced into the lower stratosphere before the anomaly due to the previous eruption had disappeared. The result would be threefold in the long term: stratospheric cooling, stratospheric humidification, and surface warming due to the positive radiative forcing associated with the water vapor.”
http://journals.ametsoc.org/doi/pdf/10.1175/1520-0442(2003)016%3C3525%3AAGSOVE%3E2.0.CO%3B2#h1Geothermic Energy can also warm the atmosphere through Hot Springs;
http://en.wikipedia.org/wiki/Hot_springsor warm the ocean through Hydrothermal Vents;
http://en.wikipedia.org/wiki/Hydrothermal_ventwhich can be a factor in Hydrothermal Circulations:
http://en.wikipedia.org/wiki/Hydrothermal_circulation6. Outer Space/Cosmic/Galactic Influences;
http://en.wikipedia.org/wiki/Outer_spacehttp://en.wikipedia.org/wiki/Cosmoshttp://en.wikipedia.org/wiki/Galaxyincluding Asteroids;
http://en.wikipedia.org/wiki/AsteroidMeteorites;
http://en.wikipedia.org/wiki/Meteoriteand Comets;
http://en.wikipedia.org/wiki/Cometcan all significantly impact Earth’s climate upon impact.
It has been hypothesized that Galactic Cosmic Rays;
http://en.wikipedia.org/wiki/Galactic_cosmic_rayhttp://en.wikipedia.org/wiki/Cosmic_raymodulated by Solar Wind, may influence cloud formation on Earth:
http://wattsupwiththat.com/2009/08/04/a-link-between-the-sun-cosmic-rays-aerosols-and-liquid-water-clouds-appears-to-exist-on-a-global-scale/http://wattsupwiththat.com/2011/08/24/breaking-news-cern-experiment-confirms-cosmic-rays-influence-climate-change/Galactic Magnetic Fields also result in the;
http://www.scholarpedia.org/article/Galactic_magnetic_fieldsGalactic Tide;
http://en.wikipedia.org/wiki/Galactic_tidewhich may influence the hypothesized Oort cloud;
http://en.wikipedia.org/wiki/Oort_Cloud“Besides the galactic tide, the main trigger for sending comets into the inner Solar System is believed to be interaction between the Sun’s Oort cloud and the gravitational fields of near-by stars or giant molecular clouds.”
Also Cosmic Dust;
http://en.wikipedia.org/wiki/Cosmic_dust“is a type of dust composed of particles in space which are a few molecules to 0.1 µm in size. Cosmic dust can be further distinguished by its astronomical location; for example: intergalactic dust, interstellar dust, interplanetary dust (such as in the zodiacal cloud) and circumplanetary dust (such as in a planetary ring).”
“Depending on their size and overall number, cosmic dust and other particles in the atmosphere have the potential to change Earth’s climate. They can reflect sunlight, which cools the Earth, absorb sunlight, which warms the atmosphere, and act as a blanket for the planet by trapping any heat it gives off. They can also facilitate the formation of rain clouds.”
http://www.space.com/1484-source-cosmic-dust.htmlIn addition, “a study of astronomical and geological data reveals that cosmic ray electrons and electromagnetic radiation from a similar outburst of our own Galactic core, impacted our Solar System near the end of the last ice age. This cosmic ray event spanned a period of several thousand years and climaxed around 14,200 years ago. Although far less intense than the PG 0052+251 quasar outburst, it was, nevertheless, able to substantially affect the Earth’s climate and trigger a solar-terrestrial conflagration the initiated the worst animal extinction episode of the Tertiary period.
The effects on the Sun and on the Earth’s climate were not due to the Galactic cosmic rays themselves, but to the cosmic dust that these cosmic rays transported into the Solar System. Observations have shown that the Solar System is presently immersed in a dense cloud of cosmic dust, material that is normally kept at bay by the outward pressure of the solar wind. But, with the arrival of this Galactic cosmic ray volley, the solar wind was overpowered and large quantities of this material were pushed inward. The Sun was enveloped in a cocoon of dust that caused its spectrum to shift toward the infrared. In addition, the dust grains filling the Solar System scattered radiation back to the Earth, producing an “interplanetary hothouse effect” that substantially increased the influx of solar radiation to the Earth.”
http://www.etheric.com/GalacticCenter/Galactic.html7. Earth’s Magnetic Field;
http://en.wikipedia.org/wiki/Earth%27s_magnetic_fieldis primarily responsible for the Earthy behaviors of the Magnetosphere;
http://en.wikipedia.org/wiki/Magnetospherewith certain secular variations in Earth’s magnetic field originating from ocean flow/circulation;
http://news.nationalgeographic.com/news/2009/06/090622-earths-core-dynamo.htmlhttp://iopscience.iop.org/1367-2630/11/6/063015/fulltextthough Leif Svalgaard notes that these are minor variations, as the magnetic field originating from ocean flow/circulation “is 1000 times smaller than the main field generated in the core.”
http://wattsupwiththat.com/2011/06/30/earths-climate-system-is-ridiculously-complex-with-draft-link-tutorial/#comment-707971http://en.wikipedia.org/wiki/Earth%27s_magnetic_fieldEarth Core Changes:
http://physicsworld.com/cws/article/news/42580appear “to be generated in the Earth’s core by a dynamo process, associated with the circulation of liquid metal in the core, driven by internal heat sources”. “Molten iron flowing in the outer core generates the Earth’s geodynamo, leading to a planetary-scale magnetic field. Beyond this, though, geophysicists know very little for certain about the field, such as its strength in the core or why its orientation fluctuates regularly. Researchers do suspect, however, that field variations are strongly linked with changing conditions within the molten core.” These core changes
influence the Magnetosphere;
http://en.wikipedia.org/wiki/Magnetosphereincluding movement of the Geomagnetic Poles:
http://www.ngdc.noaa.gov/geomag/GeomagneticPoles.shtmlhttp://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.htmlAccording to a 2009 Danish study “Is there a link between Earth’s magnetic field and low-latitude precipitation?” by Knudsen and Riisager, Geology, 2009. “The earth’s climate has been significantly affected by the planet’s magnetic field”
“Our results show a strong correlation between the strength of the earth’s magnetic field and the amount of precipitation in the tropics,” one of the two Danish geophysicists behind the study, Mads Faurschou Knudsen of the geology department at Aarhus University in western Denmark, told the Videnskab journal.”
http://www.spacedaily.com/2006/090112183735.ojdq7esu.html“Intriguingly, we observe a relatively good correlation between the high-resolution speleothem δ18O records and the dipole moment, suggesting that Earth’s magnetic field to some degree influenced low-latitude precipitation in the past. In addition to supporting the notion that variations in the geomagnetic field may have influenced Earth’s climate in the past, our study also provides some degree of support for the controversial link between GCR particles, cloud formation, and climate.”
http://geology.geoscienceworld.org/content/37/1/71.abstractAlso, according to the 2008 European Space Agency article;
http://www.esa.int/esaCP/SEMQ8LKRQJF_index_0.html“Oxygen is constantly leaking out of Earth’s atmosphere and into space. Now, ESA’s formation-flying quartet of satellites, Cluster, has discovered the physical mechanism that is driving the escape. It turns out that the Earth’s own magnetic field is accelerating the oxygen away.
8. Atmospheric Composition
http://en.wikipedia.org/wiki/Atmosphere_of_EarthNitrogen (N2) represents approximately 780,840 ppmv or 78.084% of Earth’s Atmosphere;
http://en.wikipedia.org/wiki/NitrogenOxygen (O2) represents approximately 209,460 ppmv or 20.946%;
http://en.wikipedia.org/wiki/OxygenArgon (Ar) represents approximately 9,340 ppmv or 0.9340%;
http://en.wikipedia.org/wiki/ArgonCarbon Dioxide (CO2) represents approximately 390 ppmv or 0.039%;
http://en.wikipedia.org/wiki/Carbon_dioxidecontributes to the Greenhouse Effect;
http://www.ucar.edu/learn/1_3_1.htmand influences the rate of Plant Growth;
http://www.sjsu.edu/faculty/watkins/CO2plants.htmNeon (Ne) represents approximately18.18 ppmv or 0.001818%;
http://en.wikipedia.org/wiki/NeonHelium (He) represents approximately 5.24 ppmv (0.000524%);
http://en.wikipedia.org/wiki/Helium“In the Earth’s atmosphere, the concentration of Helium by volume is only 5.2 parts per million.[66][67] The concentration is low and fairly constant despite the continuous production of new helium because most helium in the Earth’s atmosphere escapes into space by several processes.[68][69][70] In the Earth’s heterosphere, a part of the upper atmosphere, helium and other lighter gases are the most abundant elements.”
http://en.wikipedia.org/wiki/HeliumKrypton (Kr) represents approximately 1.14 ppmv (0.000114%);
http://en.wikipedia.org/wiki/KryptonMethane (CH4) represents approximately 1.79 ppmv (0.000179%);
http://en.wikipedia.org/wiki/Methanecontributes to the Greenhouse Effect;
http://www.ucar.edu/learn/1_3_1.htmHydrogen (H2) represents approximately 0.55 ppmv (0.000055%);
http://en.wikipedia.org/wiki/HydrogenNitrous Oxide (N2O) represents approximately 0.3 ppmv (0.00003%);
http://en.wikipedia.org/wiki/Nitrous_oxidecontributes to the Greenhouse Effect;
http://www.ucar.edu/learn/1_3_1.htmOzone (O3) represents approximately 0.0 to 0.07 ppmv (0 to 7×10−6%);
http://en.wikipedia.org/wiki/OzoneNitrogen Dioxide (NO2) represents approximately 0.02 ppmv (2×10−6%) (0.000002%);
http://en.wikipedia.org/wiki/Nitrogen_dioxideIodine (I2) represents approximately 0.01 ppmv (1×10−6%) (0.000001%) and;
http://en.wikipedia.org/wiki/IodineAmmonia (NH3) represents a trace amount of Earth’s Atmosphere:
http://en.wikipedia.org/wiki/AmmoniaAdditional atmosphere components includes Water vapor (H2O) that represents approximately 0.40% over full atmosphere, typically 1%-4% at surface.
http://en.wikipedia.org/wiki/Water_vapor;“Water Vapor accounts for the largest percentage of the greenhouse effect, between 36% and 66% for clear sky conditions and between 66% and 85% when including clouds.”
http://en.wikipedia.org/wiki/Greenhouse_gas#Role_of_water_vaporAerosols;
http://en.wikipedia.org/wiki/Aerosolthat “act as cloud condensation nuclei, they alter albedo (both directly and indirectly via clouds) and hence Earth’s radiation budget, and they serve as catalysts of or sites for atmospheric chemistry reactions.”
“Aerosols play a critical role in the formation of clouds;
http://en.wikipedia.org/wiki/CloudsClouds form as parcels of air cool and the water vapor in them condenses, forming small liquid droplets of water. However, under normal circumstances, these droplets form only where there is some “disturbance” in the otherwise “pure” air. In general, aerosol particles provide this “disturbance”. The particles around which cloud droplets coalesce are called cloud condensation nuclei (CCN) or sometimes “cloud seeds”. Amazingly, in the absence of CCN, air containing water vapor needs to be “supersaturated” to a humidity of about 400% before droplets spontaneously form! So, in almost all circumstances, aerosols play a vital role in the formation of clouds.”
http://www.windows2universe.org/earth/Atmosphere/aerosol_cloud_nucleation_dimming.htmlParticulates;
http://en.wikipedia.org/wiki/Particulatesincluding Soot/Black Carbon;
http://en.wikipedia.org/wiki/Soothttp://en.wikipedia.org/wiki/Black_carbonSand;
http://en.wikipedia.org/wiki/SandDust;
http://en.wikipedia.org/wiki/Dust“Volcanic Ash;
http://en.wikipedia.org/wiki/Volcanic_ashparticles have a maximum residence time in the troposphere of a few weeks.
The finest Tephera;
http://en.wikipedia.org/wiki/Tephraremain in the stratosphere for only a few months, they have only minor climatic effects, and they can be spread around the world by high-altitude winds. This suspended material contributes to spectacular sunsets.
The major climate influence from volcanic eruptions is caused by gaseous sulfur compounds, chiefly Sulfur Dioxide;
http://en.wikipedia.org/wiki/Sulfur_dioxidewhich reacts with OH and water in the stratosphere to create sulfate aerosols with a residence time of about 2–3 years.”
“Emission rates of [Sulfur Dioxide] SO2 from an active volcano range from 10 million tonnes/day according to the style of volcanic activity and type and volume of magma involved. For example, the large explosive eruption of Mount Pinatubo on 15 June 1991 expelled 3-5 km3 of dacite magma and injected about 20 million metric tons of SO2 into the stratosphere. The sulfur aerosols resulted in a 0.5-0.6°C cooling of the Earth’s surface in the Northern Hemisphere.”
http://volcanoes.usgs.gov/hazards/gas/index.php“The 1815 eruption [of Mount Tambora] is rated 7 on the Volcanic Explosivity Index, the only such eruption since the Lake Taupo eruption in about 180 AD. With an estimated ejecta volume of 160 cubic kilometers, Tambora’s 1815 outburst was the largest volcanic eruption in recorded history.”
“The eruption created global climate anomalies that included the phenomenon known as “volcanic winter”;
http://en.wikipedia.org/wiki/Volcanic_winter1816 became known as the “Year Without a Summer”;
http://en.wikipedia.org/wiki/Year_Without_a_Summerbecause of the effect on North American and European weather. Agricultural crops failed and livestock died in much of the Northern Hemisphere, resulting in the worst famine of the 19th century.”
http://en.wikipedia.org/wiki/Mount_Tambora“In the spring and summer of 1816, a persistent “dry fog” was observed in the northeastern US. The fog reddened and dimmed the sunlight, such that sunspots were visible to the naked eye. Neither wind nor rainfall dispersed the “fog”. It has been characterized as a stratospheric sulfate aerosol veil.”
“The greatest volcanic impact upon the earth’s short term weather patterns is caused by sulfur dioxide gas;”
http://en.wikipedia.org/wiki/Sulfur_dioxide“In the cold lower atmosphere, it is converted to Sulfuric Acid;
http://en.wikipedia.org/wiki/Sulfuric_acidsulfuric acid by the sun’s rays reacting with stratospheric water vapor to form sulfuric acid aerosol layers. The aerosol remains in suspension long after solid ash particles have fallen to earth and forms a layer of sulfuric acid droplets between 15 to 25 kilometers up. Fine ash particles from an eruption column fall out too quickly to significantly cool the atmosphere over an extended period of time, no matter how large the eruption.
Sulfur aerosols last many years, and several historic eruptions show a good correlation of sulfur dioxide layers in the atmosphere with a decrease in average temperature decrease of subsequent years. The close correlation was first established after the 1963 eruption of Agung volcano in Indonesia when it was found that sulfur dioxide reached the stratosphere and stayed as a sulfuric acid aerosol.
Without replenishment, the sulfuric acid aerosol layer around the earth is gradually depleted, but it is renewed by each eruption rich in sulfur dioxide. This was confirmed by data collected after the eruptions of El Chichon, Mexico (1982) and Pinatubo, Philippines (1991), both of which were high-sulfur compound carriers like Agung, Indonesia.”
http://volcanology.geol.ucsb.edu/gas.htmThere is also some evidence that if “volcanic activity was high enough, then a water vapor anomaly would be introduced into the lower stratosphere before the anomaly due to the previous eruption had disappeared. The result would be threefold in the long term: stratospheric cooling, stratospheric humidification, and surface warming due to the positive radiative forcing associated with the water vapor.”
http://journals.ametsoc.org/doi/pdf/10.1175/1520-0442(2003)016%3C3525%3AAGSOVE%3E2.0.CO%3B2#h19. Albedo “or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it. Being a dimensionless fraction, it may also be expressed as a percentage, and is measured on a scale from zero for no reflecting power of a perfectly black surface, to 1 for perfect reflection of a white surface.”Wikipedia – Albedo
“The role of Clouds “in regulating weather and climate remains a leading source of uncertainty in projections of global warming.” “Different types of clouds exhibit different reflectivity, theoretically ranging in albedo from a minimum of near 0 to a maximum approaching 0.8.” Wikipedia – Albedo#Clouds
“Cloud Albedo varies from less than 10% to more than 90% and depends on drop sizes, liquid water or ice content, thickness of the cloud, and the sun’s zenith angle. The smaller the drops and the greater the liquid water content, the greater the cloud albedo, if all other factors are the same.” Wikipedia – Cloud Albedo
“On any given day, about half of Earth is covered by clouds, which reflect more sunlight than land and water. Clouds keep Earth cool by reflecting sunlight, but they can also serve as blankets to trap warmth.” Live Science
“Low, thick clouds primarily reflect solar radiation and cool the surface of the Earth. High, thin clouds primarily transmit incoming solar radiation; at the same time, they trap some of the outgoing infrared radiation emitted by the Earth and radiate it back downward, thereby warming the surface of the Earth. Whether a given cloud will heat or cool the surface depends on several factors, including the cloud’s altitude, its size, and the make-up of the particles that form the cloud. The balance between the cooling and warming actions of clouds is very close although, overall, averaging the effects of all the clouds around the globe, cooling predominates.” NASA Earth Observatory – Clouds
Snow “albedos can be as high as 0.9; this, however, is for the ideal example: fresh deep snow over a featureless landscape. Over Antarctica they average a little more than 0.8. Wikipedia – Albedo#Snow
“The albedo for different surface conditions on the sea ice range widely, from roughly 85 per cent of radiation reflected for snow-covered ice to 7 per cent for open water. These two surfaces cover the range from the largest to the smallest albedo on earth.” GRID-Arendal – United Nations Environment Programme (UNEP)
“Sea ice has a much higher albedo compared to other earth surfaces, such as the surrounding ocean. A typical ocean albedo is approximately 0.06, while bare sea ice varies from approximately 0.5 to 0.7. This means that the ocean reflects only 6 percent of the incoming solar radiation and absorbs the rest, while sea ice reflects 50 to 70 percent of the incoming energy. The sea ice absorbs less solar energy and keeps the surface cooler.
snow has an even higher albedo than sea ice, and so thick sea ice covered with snow reflects as much as 90 percent of the incoming solar radiation. This serves to insulate the sea ice, maintaining cold temperatures and delaying ice melt in the summer. After the snow does begin to melt, and because shallow melt ponds have an albedo of approximately 0.2 to 0.4, the surface albedo drops to about 0.75. As melt ponds grow and deepen, the surface albedo can drop to 0.15. As a result, melt ponds are associated with higher energy absorption and a more rapid ice melt.”
http://nsidc.org/cryosphere/seaice/processes/albedo.html“It should be pointed out that these planetary albedos are averages. Taking Earth as an example, clouds vary from 0.4 to 0.8, snow varies from 0.4 to 0.85, forests vary from 0.04 to 0.1, grass is about 0.15, and water varies from 0.02 with the Sun directly overhead to 0.8 at low levels of incidence. So the Earth’s albedo varies, and depends on the extent of cloudiness, snowfall, and the Sun’s angle of incidence on the oceans. With an average albedo of 0.37, 63% of incoming solar energy contributes to the warmth of our planet.”
http://www.asterism.org/tutorials/tut26-1.htm“Ocean albedo varies not only with zenith angle, as above, but also tides, clouds, spindrift, plankton, other particulates, and temperature, Wind direction and velocity also have a major effect on waves and chop, affecting reflectance. At high zenith angles, the reflectance of still water, as in small ponds, etc., is close to 1.00. Choppy seas can have fairly high albedo.
See also:
http://snowdog.larc.nasa.gov/jin/albedofind.html“
http://wattsupwiththat.com/2012/01/21/the-ridiculousness-continues-climate-complexity-compiled/#comment-872099Also Particulates such as Soot/
Black_carbon warm “the Earth by absorbing heat in the atmosphere and by reducing albedo, the ability to reflect sunlight, when deposited on snow and ice. Black carbon stays in the atmosphere for only several days to weeks, whereas CO2 has an atmospheric lifetime of more than 100 years.”
“Estimates of black carbon’s globally averaged direct radiative forcing vary from the IPCC’s estimate of + 0.34 watts per square meter (W/m2) ± 0.25, to a more recent estimate by V. Ramanathan and G. Carmichael of 0.9 W/m2.” Wikipedia – Black Carbon
“Blooms of snow algea can reduce the surface albedo (light reflectance) of snow and ice, and largely affect their melting (Thomas and Duval, 1995; Hoham and Duval, 2001). For example, some glaciers in Himalayas are covered with a large amount of dark-colored biogenic material (cryoconite) derived from snow algae and bacteria (Kohshima et al., 1993; Takeuchi et al., 2001). The albedo of the intact surfaces bearing the cryoconite was substantially lower than that of the surface from which the cryoconite was artificially removed (5% versus 37%). The melting rates of the intact surfaces were reported to be 3 times larger than that of the surfaces without the cryoconite. Thus, snow algal activity possibly affects heat budget and mass balance of glaciers.” Department of Earth Sciences – Chiba University
Phytoplankton may influence Earth’s climate. A recent study used “a synergistic analysis of satellite observations (MODIS, SeaWiFS, AIRS, SSM/I and CERES)” to try to show that “dimethylsulfide (DMS) and isoprene emissions by marine phytoplankton” “into the atmosphere strongly influences cloud properties within a broad latitude belt in the Southern Hemisphere during the austral summer.” They “detected indirect aerosol effects over the Southern Ocean from 45°S to 65°S, especially in regions with plankton blooms, indicated by high chlorophyll-a concentration in seawater. The strong increase in cloud condensation nuclei column content from 2.0 × 108 to more than 5.0 × 108 CCN/cm2 for a chlorophyll increase from 0.3 to about 0.5 mg/m3 in these regions decreases cloud droplet effective radius and increases cloud optical thickness for water clouds. Consequently, the upward short-wave radiative flux at the top of the atmosphere increases.” There analysis found “reduced precipitation over the Antarctic Polar Frontal Zone during strong plankton blooms.” Krüger and Graßl, Geophysical Research Letters, 2011
“Even small shear rates can increase backscattering from blooms of large phytoplankton by more than 30 percent,” said Roman Stocker, Professor of Civil and Environmental Engineering at MIT and lead author on a paper about this work. “This implies that fluid flow, which is typically neglected in models of marine optics, may exert an important control on light propagation, influencing the rates of carbon fixation and how we estimate these rates via remote sensing.” Massachusetts Institute of Technology (MIT)
10. Biology
http://en.wikipedia.org/wiki/Biology“Metabolism is the set of chemical reactions that happen in the cells of living organisms to sustain life.”
http://en.wikipedia.org/wiki/Metabolism“Phototrophs
http://en.wikipedia.org/wiki/Photoautotrophare the organisms (usually plants) that carry out photosynthesis;
http://en.wikipedia.org/wiki/Photosynthesisto acquire energy. They use the energy from sunlight to convert carbon dioxide and water into organic materials to be utilized in cellular functions such as biosynthesis and respiration.” “In plants, algae, and cyanobacteria, photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product.”
Chemoautotrophs;
http://en.wikipedia.org/wiki/Chemotrophare “organisms that obtain carbon through Chemosynthesis;
http://en.wikipedia.org/wiki/Chemosynthesisare phylogenetically diverse, but groups that include conspicuous or biogeochemically-important taxa include the sulfur-oxidizing gamma and epsilon proteobacteria, the Aquificaeles, the Methanogenic archaea and the neutrophilic iron-oxidizing bacteria.”
Bacteria – TBD
Fungi – TBD
Protozoa – TBD
Chromista – TBD
Animal – Anthropogenic:
Carbon Dioxide;
http://en.wikipedia.org/wiki/Carbon_dioxidecontributes to the Greenhouse Effect;
http://www.ucar.edu/learn/1_3_1.htmand
influences the rate of plant growth ;
http://www.sjsu.edu/faculty/watkins/CO2plants.htmMethane
http://en.wikipedia.org/wiki/MethaneNitrous Oxide
Ozone
Soot/
Black_carbon
Aerosols/
Icebreakers/Arctic Shipping/Fishing/Cruise-Line Transits
Contrails
Land Use Changes
Deforestation
Reforestation
Cultivation
http://en.wikipedia.org/wiki/Plant_cultivationReclamation
http://en.wikipedia.org/wiki/Land_reclamationUrban Heat Islands
Run Off From Asphalt
Sewage/Wastewater Treatment Discharge
Fossil Fuel Energy Generation and Waste Heat
Nuclear Power Generation – Including Ships
Renewables – Wind Farms, Solar Arrays, Dams and Ethanol
“In 2008, total worldwide energy consumption was 474 exajoules (474×1018 J=132,000 TWh). This is equivalent to an average energy consumption rate of 15 terawatts (1.504×1013 W).”
http://en.wikipedia.org/wiki/World_energy_resources_and_consumptionetc.
“Metabolism is the set of chemical reactions that happen in the cells of living organisms to sustain life.”
http://en.wikipedia.org/wiki/Metabolism“The basal metabolic rate of a human is about 1,300-1,500 kcal/day for an adult female and 1,600-1,800 kcal/day for an adult male.”
http://hypertextbook.com/facts/2009/VickieWu.shtmlAnimal – Non-Anthropogenic including
Plankton
Beaver (Genus Castor)
http://en.wikipedia.org/wiki/Beaveretc.
11. Chemical
Fossil Fuels:
Coal
Oil shale
Petrochemicals
- Petroleum
- Mineral Oil
Asphalt
Tar Pits/Sands
Methane
http://en.wikipedia.org/wiki/Methaneetc.
Iron Fertilization “occurs naturally when upwellings bring nutrient-rich water to the surface, as occurs when ocean currents meet an ocean bank or a sea mount. This form of fertilization produces the world’s largest marine habitats. Fertilization can also occur when weather carries wind blown <a href=”http://en.wikipedia.org/wiki/Dust“>dust long distances over the ocean, or iron-rich minerals are carried into the ocean by glaciers,[3] rivers and icebergs. Iron Fertilization can result from Geo-engineering;
http://www.whoi.edu/oceanus/viewArticle.do?id=34167Reactions:
Combustion
- Forest Fires
- Fossil Fuels
- Methane
http://en.wikipedia.org/wiki/Methaneetc.
“Photosynthesis;
http://en.wikipedia.org/wiki/Photosynthesisis a chemical process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight.”
“Chemosynthesis;
http://en.wikipedia.org/wiki/Chemosynthesisis the biological conversion of one or more carbon molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic molecules (e.g. hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight, as in photosynthesis.”
Conversion of Methane, CO2, etc.
12. Physics
Temperature
http://wattsupwiththat.com/2012/01/01/a-big-picture-look-at-earths-temperature/http://en.wikipedia.org/wiki/TemperatureVariations in atmospheric and oceanic temperature can have significant impacts on Earth’s climate, including cloud cover, rainfall, Flora, Fauna, Ocean Circulation and Marine Biology. These variables can in turn affect Albedo and Transpiration.
Length of Day;
http://en.wikipedia.org/wiki/Day_length“The length of the day varies when any mass on or in the Earth moves, affecting the state of its angular momentum. Take weather in the atmosphere, for instance. The seasonal changes in the trade winds and monsoons have a well-known effect on the length-of-day over the course of the year. The IERS calculates the angular momentum of the whole atmosphere every six hours, allowing the signal of large-scale weather systems to be detected.
The tides of the ocean have the long-term effect of slowing the Earth down and speeding up the Moon (which thus moves away from Earth a few centimeters per year). They also have short-term effects that are being modeled more accurately all the time. Changes in ocean currents change the length-of-day. Our computer models of ocean circulation are getting good enough, thanks to centimeter-precise measurements of the sea surface, that we can analyze this signal too. The National Earth Orientation Service has a page explaining this stuff in clear detail. (These are also the people who announce leap seconds.)
Other factors affecting the LOD data include rises and subsidences of the land surface, the buildup of glaciers, large earthquakes, large-scale pumping of groundwater and construction of reservoirs, and the shape of the ocean’s surface in response to air masses above it.
Each of these can be estimated and their signals extracted from the raw data, untangling the many mixed threads of information in the LOD record. One by one, the sources of variation can be determined and subtracted out, leaving another level to be analyzed.
The last level of variation, a slow drift on the decade scale, seems to be related to the motion of liquid iron in the Earth’s core. This layer allows the solid inner core to rotate freely with respect to the outer mantle and crust. Thus every twist and torque exerted by the atmosphere, oceans, Moon, Sun, other planets and the rest of the universe stirs that inner iron ocean, affecting the great dynamo that drives the Earth’s magnetic field.”
http://geology.about.com/od/tectonicsdeepearth/a/lodresearch.htmIn this paper, “Are Changes in the Earth’s Rotation Rate Externally Driven and Do They Affect Climate?”, by Ian R. G. Wilson, the General Science Journal, 2011, “evidence is presented to show that the phases of two of the Earth’s major climate systems, the North Atlantic Oscillation (NAO) and the Pacific Decadal Oscillation (PDO), are related to changes in the Earth’s rotation rate. We find that the winter NAO index depends upon the time rate of change of the Earth’s length of day (LOD). In addition, we find that there is a remarkable correlation between the years where the phase of the PDO is most positive and the years where the deviation of the Earth’s LOD from its long-term trend is greatest.”
http://www.wbabin.net/files/4424_wilson.pdfIn this paper, “On the correlation between air temperature and the core Earth processes: Further investigations using a continuous wavelet analysis” by Stefano Sello, Mathematical and Physical Models, 2011
http://arxiv.org/pdf/1103.4924.pdfThe authors main results are: ”…the detection of a broadband variability centered at 78 yr (common variability ranges from 67 to 86 yr from SSA method). Oscillations in global temperatures with periods in the 65-70 yr are well known. Our work suggests that the same core processes that are known to affect Earth’s rotation and magnetic field may also contribute to the excitation of such modes, possibly through geomagnetic modulation of near-Earth charged particle fluxes that may influence cloud nucleation processes, and hence the planetary albedo, on regional as well as global scales.”
Pressure
http://en.wikipedia.org/wiki/PressureStates of Matter
http://en.wikipedia.org/wiki/State_of_matterHeat Conduction
http://en.wikipedia.org/wiki/Heat_conductionConvection
http://en.wikipedia.org/wiki/ConvectionThermal Radiation
http://en.wikipedia.org/wiki/Thermal_radiationThermodynamics
http://en.wikipedia.org/wiki/Laws_of_thermodynamicsEntropy
http://en.wikipedia.org/wiki/Entropy13. Known unknowns
Non-Equilibrium Pattern Systems, aka “nonlinear pattern formation in far-from-equilibrium dissipative systems” and “pattern formation in dissipative systems” “The spontaneous formation of spatio-temporal patterns can occur when a stationary state far from thermodynamic equilibrium is maintained through the dissipation of energy that is continuously fed into the system. While for closed systems the second law of thermodynamics requires relaxation to a state of maximal entropy, open systems are able to interchange matter and energy with their environment. By taking up energy of higher value (low entropy) and delivering energy of lower value (high entropy) they are able to export entropy, and thus to spontaneously develop structures characterized by a higher degree of order than present in the environment.” PhD thesis – “Controlling turbulence and pattern formation in chemical reaction” Matthias Bertram,
https://docs.google.com/leaf?id=0B9p_cojT-pflY2Y2MmZmMWQtOWQ0Mi00MzJkLTkyYmQtMWQ5Y2ExOTQ3ZDdm&hl=en_GBExamples of this effect can be seen in the following examples of Belousov-Zhabotinsky (BZ) reactions:
Phil Salmon argues in this article;
http://wattsupwiththat.com/2011/01/25/is-the-enso-a-nonlinear-oscillator-of-the-belousov-zhabotinsky-reaction-type/that ENSO is a Non-Equilibrium Pattern System. “Of the class of known attractors of nonlinear oscillatory systems, the Lorenz and possibly Roessler attractors bear similarities to the attractor likely responsible for the alternating phases of La Nina and el Nino dominance that characterise the ENSO and constitute the PDO.” Here are several visualizations of Pacific Ocean Temperatures:
http://wattsupwiththat.files.wordpress.com/2011/01/etb58j1.gif?w=640http://www.cpc.ncep.noaa.gov/products/intraseasonal/tlon_heat.gifhttp://www.bom.gov.au/climate/enso/sub_surf_mon.gifUncertainty
Randomness
Evolution
Infinite Iterations
Chaos?
14. Unknown unknowns
A lot of other things.
General summaries of the potential variables involved in Earth’s climate system;
http://www.physicalgeography.net/fundamentals/7y.htmlhttp://oceanservice.noaa.gov/education/pd/climate/factsheets/whatfactors.pdfhttp://ioc3.unesco.org/oopc/obs/ecv.phphttp://wattsupwiththat.com/2012/01/21/the-ridiculousness-continues-climate-complexity-compiled/