The Montreal Protocol helps stop the depletion of the ozone layer, The Kyoto Protocol creates the first major international agreement on climate change and The Paris Agreement sees most nations of the world agree to make public their climate change plans at least every five years.
By committing industrialized nations and economies in transition to limiting and reducing greenhouse gas (GHG) emissions in accordance with established individual targets, the Kyoto Protocol operationalizes the United Nations Framework Convention on Climate Change.
By keeping the increase in global temperature this century well below 2 degrees Celsius above pre-industrial levels and pursuing efforts to further limit the temperature increase to 1.5 degrees Celsius, the Paris Agreement's main objective is to increase the effectiveness of international efforts to combat the threat posed by climate change.
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