Entry into force

Intergovernmental agreements, including protocols and amendments, are not legally valid until ratified by a certain number of countries. For the UNFCCC creation, it took 50 countries; as for ratifying the Kyoto Protocol, at least 55 countries were required (together representing 55% of Annex 1 emissions in 1990). The Paris Agreement entered into force after at least 55 Parties to the Convention accounting in total for at least an estimated 55% of the total global greenhouse gas emissions have deposited their instruments of ratification.

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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...

Small-scale CDM Project Activities

These are smaller scale project activities that are subject to a more agile project cycle and with lower transaction costs.

Clean Development Mechanism (CDM)

Established by Article 12 of the Kyoto Protocol, evolved from a Brazilian proposal, and stipulated throughout the COP 3 negotiations, the clean development mechanism (CDM) is the only of the three mechanisms introduced by the Protocol that include developing...