According to today’s report from NASA’s global temperature monitor, March of 2017 was the second hottest such month recorded in the 137 year climate record.
Temperatures for the month were 1.12 C hotter than NASA’s 20th Century baseline and 1.34 C hotter than 1880s averages. These warm temperatures likely represent a climate state not seen on Earth since at least the Eemian climate epoch of 115,000 years ago. They are also now in a range that is producing serious geophysical changes such as glacial melt, sea level rise, sea ice melt, more extreme weather, and declining ocean health.
(Temperature anomaly distributions during March of 2017 is indicative of continued, global warming related polar amplification. Image source: NASA.)
Much of the excess heat during March, as has been the case with many recent months, has focused at the poles. The northern polar region in particular saw considerable above…
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