UN climate chief and UK government sources say carbon cuts pledged by countries will see temperatures rise 2.5-3C, but could be ratcheted up later

The greenhouse gas emission cuts being pledged by the world’s nations will fall short of restricting global warming to 2C, the UN’s climate chief and UK government sources have warned.

A rise beyond 2C, the internationally agreed safety limit, may push the climate beyond tipping points and into dangerous instability. The expected pledges are likely to limit temperature rises to about 3C.

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Source: Guardian Environment