Friday, February 23, 2018
 

HFC greenhouse gases: a tale of two (or more) futures

New research projects greenhouse effect from substances that replaced ozone-depleting products

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new paper appearing online in Atmospheric Environment  coauthored by researchers at NOAA’s Earth System Research Laboratory looked at the climate implications of various proposals for future HFC use that are being discussed this week under the United Nations Montreal Protocol, the global agreement that protects the ozone layer. 

Annual Antarctic ozone hole larger and formed later in 2015

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The 2015 Antarctic ozone hole area was larger and formed later than in recent years, according to scientists from NOAA and NASA.

On Oct. 2, 2015, the ozone hole expanded to its peak of 28.2 million square kilometers (10.9 million square miles), an area larger than the continent of North America. Throughout October, the hole remained large and set many area daily records.

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