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You are here: Home / Podcast / Rapid Response To Climate Change More Important Than Ever

Rapid Response To Climate Change More Important Than Ever

October 17, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/10/EW-10-17-18-Rapid-Response-to-Climate-Change.mp3

The Intergovernmental Panel on Climate Change has issued a new report emphasizing the importance of taking rapid action to limit global warming to 1.5 degrees Celsius and examining the consequences of allowing temperatures to rise 2 degrees instead.

The report is the work of 91 authors and review editors from 40 countries and cites over 6,000 scientific references.

A key message of the report is that we are already seeing the consequences of a 1 degree rise in global temperatures in the form of more extreme weather, rising sea levels and diminishing Arctic sea ice, among other things.

The report highlights what the impacts of not limiting the temperature increase to 1.5 degrees Celsius would be.

With a 2-degree rise, global sea levels would rise an extra 4 inches, which would have very costly consequences.  With a 2-degree rise, an Arctic Ocean free of any sea ice in summer would occur every 5 or 10 years, instead of once a century.  While coral reefs are already likely to decline by 70-90% based on a 1.5-degree rise, virtually all of them would be lost with a 2-degree rise.

Limiting global warming would give people and ecosystems more room to adapt and remain below relevant risk thresholds.

But the most sobering news is that at this point, limiting global warming to a 1.5-degree rise would require rapid and far-reaching transitions in land, energy, industry, buildings, transport, and cities.  We need to reduce CO2 emissions by 45% by 2030 and far more by 2050.

Accomplishing this is possible within the laws of chemistry and physics, but it is very uncertain whether we have the collective will to do it.

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Rapid response needed to limit global warming

Photo, posted July 26, 2018, courtesy of the California Bureau of Land Management via Flickr.

 

‘Rapid Response to Climate Change’ from Earth Wise is a production of WAMC Northeast Public Radio.

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