Whatever is generated by human activity.
Veja também
See also
Emissions produced as a result of human action. For example, large amounts of carbon dioxide are being released into the atmosphere by activities such as the burning of fossil fuels, agriculture, cement making, and so on.
The process through which the atmosphere and water continuously exchange molecules of carbon dioxide. The diffusion of carbon dioxide into the oceans accounts for almost half of the carbon extracted from the atmosphere. The colder oceans absorb more CO2 than warmer...
The totality of the atmosphere, hydrosphere, biosphere, and geosphere and their interactions.