The totality of the atmosphere, hydrosphere, biosphere, and geosphere and their interactions.
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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...
The COP 21’s Paris Agreement brings all nations into a common cause to undertake ambitious efforts to combat climate change and adapt to its effects, with enhanced support to assist developing countries to do so. Its central aim is to strengthen the global response...
Time at which carbon stored by sequestration remains in a carbon pool without being rereleased. Only permanent carbon pools are acceptable for climate policy purposes.