Scientists at NASA-GISS have confirmed that the first six months of 2010 have set a global temperature record.
In the meantime, according to the National Snow and Ice Data Center, Arctic sea ice continues to decline. They report:
“Average June ice extent was the lowest in the satellite data record, from1979 to 2010. Arctic air temperatures were higher than normal, and Arcticsea ice continued to decline at a fast pace. June saw the return of theArctic dipole anomaly, an atmospheric pressure pattern that contributed to the record sea ice loss in 2007.”
As Bradford Plummer smartly notes in his blog:
“One hot year doesn't, on its own, prove that humans are warming the planet any more than one cold year disproves it. That said, there's a clear upward trend here, and reams of evidence that the planet is heating up. It's not just the thermometer record, either as a recent EPA report noted, there are dozens of indicators, from the changing length of the growing season to
shifting species habitats.”