carbon cycle, definition of

Carbon Cycle

All parts (reservoirs) and fluxes of carbon. The cycle is usually thought of as four main reservoirs of carbon interconnected by pathways of exchange. The reservoirs are the atmosphere, terrestrial biosphere (usually includes freshwater systems), oceans, and sediments (includes fossil fuels). The annual movements of carbon, the carbon exchanges between reservoirs, occur because of various chemical, physical, geological, and biological processes. The ocean contains the largest pool of carbon near the surface of the Earth, but most of that pool is not involved with rapid exchange with the atmosphere.

EcoWho Articles where 'carbon cycle' used:EcoWho blog posts where 'carbon cycle' used:News & Blog articles where 'carbon cycle' used:
  • Watching CO2 feed the world
    Watching a child grow is seeing carbon dioxide in action. Plants turn CO2 into the food we eat to live and grow on. “You can’t live on air” is a common saying but that is just what we do; we live on air and water.
  • Corrected RCP Scenario Removal Fractions
    Reposted from Dr. Roy Spencer’s blog February 6th, 2020 by Roy W. Spencer, Ph. D. Well, as I suspected (and warned everyone) in my blog post yesterday, a portion of my calculations were in error regarding how much CO2 is taken out of the atmosphere...
  • Ice sheets impact core elements of the Earth’s carbon cycle
    University of Bristol The Earth’s carbon cycle is crucial in controlling the greenhouse gas content of our atmosphere, and ultimately our climate. Ice sheets which cover about 10 percent of our Earth’s land surface at present, were thought...
  • Climate warming experiment finds unexpected results
    From Phys.org January 4, 2019 by Emily Pontecorvo, American Geophysical Union Tropical forests store about a third of Earth’s carbon and about two-thirds of its above-ground biomass. Most climate change models predict that as the world warms, all...
  • Doughnut Economics: the long-sought alternative to endless growth
    Finding a healthy alternative to the prevailing growth model that has strained the planet to bursting is the holy grail of environmental economics. And it looks like maybe we've found it. George Monbiot, the most dynamic environmental journalist I know,...
  • Now it’s the fungi carbon footprint that isn’t in climate models
    From a long line of missing things in climate models and the University of Texas at Austin: Symbiotic fungi inhabiting plant roots have major impact on atmospheric carbon, scientists say AUSTIN, Texas — Microscopic fungi that live in plants’ roots...
  • Apparently, 4 degrees spells climate doom
    One has to wonder though, since CO2 residence time has been said to be anywhere from  five year to hundreds, or even thousands of years, with no solid agreement yet, how they can be so sure of themselves? From the … Continue reading →
  • Earth Could be Two Times More Sensitive to CO2 Than Previously Thought
    Image via Shutterstock As levels of CO2 in the atmosphere rise, scientists are grappling with a mountain of data to form an accurate picture of the future. Scientists from the Geological Society of London now believe that most current climate models only    
  • US Carbon Dioxide Emissions – down by source
    I’ve often said my email is like a fire hose. Here’s an example of something that got lost in the stream and I didn’t find it until last night while looking for another email. Zeke Hausfather writes (In August 2012): … Continue...

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