PPCDAM

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...

It is the conversion, directly induced by the humans, of land that has not been forested – for a period of at least 50 years – into forested land through planting, sowing, and/or human-induced promotion of natural sources of seeds. This definition is used for...

The word ‘biome’ – ‘bios’ (from Ancient Greek βίο, meaning ‘life’) and ‘ome’ (a variation of ōma, from Ancient Greek ωμα, meaning ‘mass’ or ‘group’) – was first used in 1943 by the American botanist Frederic Edward Clements, to define a biological unit or...