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This chart shows what’s at stake in the quest to stop climate change

Sunday, June 26, 2016 18:23
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(Before It's News)

Desdemona Despair

The figure shows the 'global mean surface temperature evolution from the Last Glacial maximum through the Holocene', combined with the temperature range aspired to in the Paris climate agreement, possible temperature rises for different greenhouse gas emissions scenarios (RCP2.6, RCP8.5, and so on), and the tipping point thresholds for various major planetary changes. Graphic: Schellnhuber, et al. / Nature Climate Change

By Chris Mooney
23 June 2016

(Washington Post) – Here at the Energy and Environment blog, we cover, regularly, the tipping points of climate change — how, for instance, the glaciers of West Antarctica may already have passed a key threshold that leads to unstoppable melt.

We cover the history of the Earth’s climate — including why the Holocene era, which began some 11,700 years ago and we lived in up until fairly recently (when many researchers believe an “Anthropocene” began), was so stable and conducive to human civilization.

And of course we cover the quest to keep warming below the Paris climate targets, 1.5 degrees and 2 degrees Celsius, and the scenarios for greenhouse gas emissions that might be capable of doing that — and also those that can’t.

But these are all complicated, nuanced stories, and the idea that they can all be pulled together into one analysis — much less one figure — is hard to believe.

Nonetheless, I think three researchers from the Potsdam Institute for Climate Impact Research have done precisely that with the image below, which is part of an optimistic essay they just published in Nature Climate Change, suggesting that the recently negotiated Paris climate agreement has what it takes to stabilize climate change. In the process, the researchers deliver the sort of rare big picture analysis that we mortals need now and again to understand why scientists are generally so freaked about a warming climate, and also why, in this case, they’re feeling a shard of hope. [more]

This chart perfectly explains what’s at stake in the quest to stop climate change



Source: http://www.desdemonadespair.net/2016/06/this-chart-shows-whats-at-stake-in.html

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