Atmospheric carbon cycle (original) (raw)
The atmospheric carbon cycle accounts for the exchange of gaseous carbon compounds, primarily carbon dioxide (CO2), between Earth's atmosphere, the oceans, and the terrestrial biosphere. It is one of the faster components of the planet's overall carbon cycle, supporting the exchange of more than 200 billion tons of carbon (i.e. gigatons carbon or GtC) in and out of the atmosphere throughout the course of each year. Atmospheric concentrations of CO2 remain stable over longer timescales only when there exists a balance between these two flows. Methane (CH4), Carbon monoxide (CO), and other man-made compounds are present in smaller concentrations and are also part of the atmospheric carbon cycle.
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| dbo:abstract | The atmospheric carbon cycle accounts for the exchange of gaseous carbon compounds, primarily carbon dioxide (CO2), between Earth's atmosphere, the oceans, and the terrestrial biosphere. It is one of the faster components of the planet's overall carbon cycle, supporting the exchange of more than 200 billion tons of carbon (i.e. gigatons carbon or GtC) in and out of the atmosphere throughout the course of each year. Atmospheric concentrations of CO2 remain stable over longer timescales only when there exists a balance between these two flows. Methane (CH4), Carbon monoxide (CO), and other man-made compounds are present in smaller concentrations and are also part of the atmospheric carbon cycle. Human activities, primarily the extraction and burning of fossil carbon from Earth's lithosphere starting with the industrial revolution, have disturbed the previous balance of the atmospheric carbon cycle and have been mostly responsible for the ongoing rapid growth in CO2 and CH4 concentrations. As of year 2019, annual emissions grew to 10 GtC/year, with a cumulative total of about 450 GtC injected into the cycle. The terrestrial and ocean sinks have thus far absorbed half of the added carbon, and half has remained in the atmosphere primarily as CO2. Assuming the growth trend in emissions continues, the CO2 concentration is on a path to at least double by the latter half of this century. The atmospheric carbon cycle also strongly influences Earth's energy balance through the greenhouse effect, and affects the acidity or alkalinity of the planet's surface waters and soils. Despite comprising less than 0.05% of all atmospheric gases by mole fraction, the recent rise in carbon concentrations has caused substantial global heating and ocean acidification. Such effects are generally projected to accelerate further until net emissions are stabilized and reduced. (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/AIRS_Carbon_Dioxide.png?width=300 |
| dbo:wikiPageExternalLink | http://agage.eas.gatech.edu/index.htm http://ds.data.jma.go.jp/gmd/wdcgg/ http://www.jpl.nasa.gov/news/news.php%3Ffeature=6701 https://web.archive.org/web/20110814011957/http:/cdiac.ornl.gov/ https://web.archive.org/web/20160406090043/http:/ds.data.jma.go.jp/gmd/wdcgg/ |
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| dbo:wikiPageWikiLink | dbr:Carbon_cycle dbr:Carbon_dioxide dbr:Carbon_monoxide dbr:Carbon_sink dbr:Methane_clathrate dbr:Industrialisation dbr:Anaerobic_digestion dbr:Anaerobic_respiration dbr:Erosion dbr:Organic_compound dbr:Climate dbr:El_Nino dbr:NASA dbc:Climate_change_and_the_environment dbr:Silicate_minerals dbr:File:Carbon_cycle_-_Main_components.png dbr:Fossil_fuels dbr:Carbon_compounds dbr:Cellular_respiration dbr:Cement dbr:Biogenic dbr:Global_Carbon_Project dbr:Global_heating dbr:Isotope dbr:Earth's_energy_balance dbr:Respiration_(physiology) dbc:Carbon_cycle dbc:Atmospheric_chemistry dbr:Biosphere dbr:Black_carbon dbr:Autotroph dbr:Photosynthesis dbr:Greenhouse_effect dbr:Methane dbr:Ocean_acidification dbr:Autotrophs dbr:Hydroxyl dbr:Volcano dbr:Industrial_revolution dbr:Thermohaline_circulation dbr:Weathering dbr:Oxidation dbr:Mole_fraction dbr:Residence_time_(fluid_dynamics) dbr:Gigatons dbr:Acidity_or_alkalinity dbr:Carbon_emission dbr:File:AIRS_Carbon_Dioxide.png dbr:File:NASA_-_A_Year_in_the_Life_of_Earth's_CO2_x1SgmFa0r04.webm |
| dbp:align | right (en) |
| dbp:caption | Partitioning of emissions show that most emissions have been absorbed by carbon sinks, including plant growth, soil uptake, and ocean uptake (en) Emissions of have been caused by different sources ramping up one after the other (en) |
| dbp:date | 2016-04-06 (xsd:date) |
| dbp:direction | horizontal (en) |
| dbp:header | Carbon dioxide emissions and partitioning (en) |
| dbp:image | CO2 Emissions by Source Since 1880.svg (en) Carbon Dioxide Partitioning.svg (en) |
| dbp:url | https://web.archive.org/web/20160406090043/http:/ds.data.jma.go.jp/gmd/wdcgg/ |
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| dct:subject | dbc:Climate_change_and_the_environment dbc:Carbon_cycle dbc:Atmospheric_chemistry |
| gold:hypernym | dbr:Earth |
| rdf:type | dbo:Place |
| rdfs:comment | The atmospheric carbon cycle accounts for the exchange of gaseous carbon compounds, primarily carbon dioxide (CO2), between Earth's atmosphere, the oceans, and the terrestrial biosphere. It is one of the faster components of the planet's overall carbon cycle, supporting the exchange of more than 200 billion tons of carbon (i.e. gigatons carbon or GtC) in and out of the atmosphere throughout the course of each year. Atmospheric concentrations of CO2 remain stable over longer timescales only when there exists a balance between these two flows. Methane (CH4), Carbon monoxide (CO), and other man-made compounds are present in smaller concentrations and are also part of the atmospheric carbon cycle. (en) |
| rdfs:label | Atmospheric carbon cycle (en) |
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| foaf:depiction | wiki-commons:Special:FilePath/Anthropogenic_carbon_flows_1850-2018.png wiki-commons:Special:FilePath/CO2_Emissions_by_Source_Since_1880.svg wiki-commons:Special:FilePath/Carbon_Dioxide_800kyr.svg wiki-commons:Special:FilePath/Carbon_Dioxide_Partitioning.svg wiki-commons:Special:FilePath/Global_carbon_budget_components.png wiki-commons:Special:FilePath/AIRS_Carbon_Dioxide.png wiki-commons:Special:FilePath/Carbon_cycle_-_Main_components.png wiki-commons:Special:FilePath/Carbon_dioxide_emissions_global_carbon_cycle.jpg |
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