Greenhouse gases (GHG)

Gaseous constituents of the atmosphere, from natural or anthropic sources, that absorb and re-emit infrared radiation. The UNFCCC and Kyoto Protocol count for carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), and sulfur hexafluoride (SF₆), accompanied by two families of gases – hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) .

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Carbon credits

Reductions in greenhouse gas emissions tradable in the international carbon market, measured in avoided tons of carbon dioxide equivalent (tCO2e). Currently, there are two types of assets being traded on the market: (i) emission allowances allocated to an existing...

Forestation

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...

Biome

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...