Plans by about 150 countries to curb greenhouse gas emissions will slow climate change this century and keep alive a goal of limiting a rise in temperatures to two degrees Celsius (3.6 Fahrenheit), the United Nations said.
The national strategies would restrict a rise in world emissions to the equivalent of 56.7 billion tonnes of carbon dioxide a year by 2030 — four billion less than expected without the extra action — from 49.0 billion in 2010, it said.
If fully implemented, plans by nations led by China and the United States “begin to make a significant dent in the growth of greenhouse gas emissions”, Christiana Figueres, head of the UN Climate Change Secretariat, said in a statement.
The plans, known as Intended Nationally Determined Contributions (INDCs), will be the building blocks for a UN deal expected at a summit in Paris from November 30-December 11 to fight global warming in the years from 2020.
The report, reviewing INDCs submitted by an informal deadline of October 1, said the “global response to climate change keeps door open to two degrees Celsius temperature limit”.
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