Loading your learn pack…
Read the summary, then start training!
The main global carbon reservoirs are the atmosphere, terrestrial biosphere, oceans, sediments and fossil fuels, and Earth’s interior in the crust and mantle.
Earth’s carbon is stored and exchanged among several major reservoirs across the atmosphere, biosphere, hydrosphere, pedosphere, and geosphere. The atmosphere contains carbon mainly as carbon dioxide and methane. The terrestrial biosphere stores carbon in living and dead organisms and soils, while the oceans contain the largest active near-surface carbon pool, including dissolved inorganic carbon, organic carbon, and marine organisms. Sediments and fossil fuels store carbon over longer periods, and the lithosphere—including Earth’s crust and mantle—contains enormous quantities in limestone, other carbonate rocks, and kerogens. These reservoirs are connected by biological, physical, chemical, and geological processes. Photosynthesis transfers atmospheric carbon dioxide into ecosystems, while respiration, decomposition, combustion, rivers, and ocean-atmosphere exchange return carbon to the atmosphere or transport it to aquatic systems. The fast carbon cycle operates over years to decades through organisms, soils, and surface waters, whereas the slow carbon cycle moves carbon through rocks, sediments, tectonic activity, weathering, and volcanism over thousands to millions of years. Human activities, especially fossil-fuel combustion, cement production, and land-use change, have increased atmospheric carbon dioxide and disrupted the natural balance among reservoirs.
The main global carbon reservoirs are the atmosphere, terrestrial biosphere, oceans, sediments and fossil fuels, and Earth’s interior in the crust and mantle.
The ocean is the largest actively cycled near-surface carbon reservoir, while carbonate rocks and other geological materials store the greatest total quantities of carbon.
Terrestrial ecosystems store carbon in vegetation, organisms, and soils; soils contain substantially more carbon than living vegetation above ground.
Carbon moves among reservoirs through photosynthesis, respiration, decomposition, dissolution, river transport, sedimentation, weathering, tectonics, and volcanic release.
The fast carbon cycle operates over years to decades, whereas the geological carbon cycle can take thousands to millions of years.
Human emissions and land-use changes have increased atmospheric carbon dioxide, contributed to ocean acidification, and altered the balance of natural carbon exchanges.
A natural store or pool in which carbon is held, such as the atmosphere, oceans, organisms, soils, sediments, or rocks.
The gaseous layer surrounding Earth that stores carbon mainly as carbon dioxide and methane.
All land-based living and dead organisms, together with the carbon stored in vegetation, organic matter, and soils.
The marine store of carbon found as dissolved inorganic carbon, dissolved and particulate organic carbon, sediments, and living and non-living marine matter.
The solid Earth, including the crust, mantle, rocks, sediments, carbonate minerals, kerogens, and fossil fuels that store carbon.
The biological portion of the carbon cycle that transfers carbon among the atmosphere, organisms, soils, and surface waters over years to decades.
The geological portion of the carbon cycle that moves carbon through rocks, sediments, the crust, and mantle over thousands to millions of years.
The capture and storage of carbon in a reservoir for a period of time, reducing its presence in the atmosphere.
Carbon dissolved in water primarily as carbon dioxide, bicarbonate, and carbonate ions.
The reduction in seawater pH caused primarily by the ocean absorbing increasing amounts of atmospheric carbon dioxide.
“Can you explain what "The main global carbon reservoirs are the atmosphere, terrestrial biosphere, oceans, sediments and fossil fuels, and Earth’s interior in the crust and mantle." means in simple terms?”