BOILING IT DOWN
If you’re one of those folks who are convinced that climate change is a Chinese hoax or whatever, I’ve got great news: it snowed in the US last week. Problem solved, am I right? Anyway, for the rest of us, things are not so hot. Or, rather, they’re extremely hot, and that’s the problem:
February 2017 was the planet’s second warmest February since record keeping began in 1880, said NOAA’s National Centers for Environmental Information (NCEI) on Friday; NASA also rated February 2017 as the second warmest February on record. The only warmer February was just last year, in 2016. Remarkably, February 2017 ranked as the fourth warmest month (expressed as the departure of temperature from average) of any month in the global historical record in the NASA database, and was the seventh warmest month in NOAA’s database—despite coming just one month after the end of a 5-month long La Niña event, which acted to cool the globe slightly. The extreme warmth of January 2017 (tenth warmest month of any month in NASA’s database) and February 2017 (fourth warmest) gives 2017 a shot at becoming Earth’s fourth consecutive warmest year on record, if a moderate or stronger El Niño event were to develop by summer, as some models are predicting.
Arctic sea ice extent during February 2017 was the lowest in the 39-year satellite record, beating the record set in February 2016, according to the National Snow and Ice Data Center (NSIDC). The record low ice extent was due, in large part, to very warm air temperatures in the Arctic—temperatures at the 925 mb level (approximately 2,500 feet above sea level) were 2 – 5 degrees Celsius (4 – 9 degrees Fahrenheit) above average over the Arctic Ocean during February.
Sea ice has been exceptionally scant on the other end of the globe. Antarctic sea ice extent dropped below the lowest values recorded in any month in the satellite record by mid-February. They continued to sag until reaching a new record-low extent in early March.
NOAA also said a few days ago that this December-January-February period was the second hottest on record. But really, how about that snowstorm?