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Scientists warn that Paris summit is last chance to prevent fatal temperature rise

BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h2156 (Published 23 April 2015) Cite this as: BMJ 2015;350:h2156
  1. Nigel Hawkes
  1. 1London

The earth can be saved from catastrophic climate change but only if bold action leads to a global agreement at the climate summit in Paris in December, leading climate scientists have said.

In a statement issued for Earth Day, they said that the Paris meeting will be the last chance to prevent global temperatures rising by more than 2°C, which they see as the upper safety limit. Achieving this target would require carbon releases into the atmosphere to peak by 2020 and to decline to near zero by 2050.

This is possible, but only just, Johan Rockström of the Stockholm Resilience Centre told a briefing at the Science Media Centre in …

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