- Arctic sea ice tied for lowest in April 2017 even without El Nino
- Arctic warming 2x faster than global average
by Andrew Freedman Mashable May 16 2017 full article here
Continued freak warmth in the Arctic helped propel global average temperatures to the second-warmest level on record for the month of April, NASA reported on Monday.
The new findings illustrate how the planet is still setting climate milestones even in the absence of other factors that tend to elevate global air and sea temperatures, such as an El Niño event.
This makes clear the growing influence of human-caused global warming on the planet’s climate, month after month, year after year, as the amounts of planet-warming greenhouse gases in the atmosphere continue to rise to levels unseen during all of human history. …The top 3 hottest months of April to occur since instrument records began in 1880 have all taken place since 2010.
…For April of 2017, the story is dominated by unusual warmth in parts of the Arctic, including across Siberia, parts of China, Alaska and the northwest portions of the Arctic Ocean. Greenland, however, had below average temperatures for the month, though that weather pattern reversed itself in early May.
Arctic sea ice tied for for the lowest level on record during the month of April, after setting record lows throughout the fall and winter. The sea ice cover, which has been declining since satellites first began keeping tabs on it in 1979, is now far thinner and younger than average as it enters the summer melt season. (Older, thicker ice has a higher chance of surviving the summer melt.) …