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The significant news here is the increasing confirmation of a long suspected side effect; as mean tempretures rise the ability of the land and sea to absorb CO2 degrades.

  About half of all CO2 emissions every year are taken back out of the atmosphere by being dissolved in the ocean or being sucked up by growing trees and plants. But the oceans are getting hotter and can therefore absorb less CO2 while on land hotter and drier conditions and more wildfires mean less plant growth.