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This winter has been a tale of two Americas: The Midwest is just beginning to thaw out from a battery of epic cold snaps, while Californians might feel that they pretty much skipped winter altogether.
In fact, new NOAA data reveal that California’s winter (December through February) was the warmest in the 119-year record, 4.4 degrees Fahrenheit above the 20th century average.
The map above ranks every state’s winter temperature average relative to its own historical record low (in other words, relative to itself and not to other states). Low numbers indicate that the state was unusually cold; higher numbers mean it was exceptionally warm.
As you can see, the Midwest was much colder than average, while the West was hotter than average (despite a season-long kerfluffle about polar vortexes, the East Coast wasn’t exceptionally cold, after all).
As we’ve reported, there’s currently a scientific debate over whether climate change in the Arcitc is making the jet stream “drunk,” and thereby increasing the likelihood of extreme cold spells; the exact role of climate change in California’s record heat is still unclear.
MOTHER JONES: California Just Had Its Warmest Winter on Record
NASA | Six Decades of a Warming Earth (by NASA Goddard)
Obama addresses climate change in his Inauguration speech.
Carbon…twitprint? Per one estimate, every tweet emits about 0.02 grams of C02 into the atmosphere (via @mathewi) http://j.mp/aYIdcD
Interesting. If this is true, the Times, with 44,367 tweets sent in the past three years, has produced an extra 887 grams of CO2.
Just to set the record straight on sea-level rise. The IPCC’s worst-case scenario forecasts a sea-level rise of 26 to 59 centimeters (10 to 23 inches) by the end of this century. But that is based on a temperature rise of 5.2 degrees Celsius—whereas the IPCC itself said that temperatures might rise 6.4 degrees Celsius. By lowballing the possible temperature increase, the IPCC reduced the estimate of sea-level rise by six inches.
Second, the IPCC chose a date of 2095, not 2100. Picking a date five years sooner reduced the projected sea rise by another two inches.
Worst of all, over the last 40 years seas have risen50 percent more than predicted by the models the IPCC uses. Yet the IPCC did nothing to correct for the gap between model and reality. Can you imagine the outcry if, instead, over the last 40 years seas had risen only one half of what models forecast, but the IPCC had stubbornly stuck to the models that overstate the seas’ rise by a factor of two? By sticking with models that have underestimated actual sea-level rise so far, there is a real possibility that the IPCC forecasts underestimate how much more the waters will rise in this century.
Begley, on why climate scientists are losing the PR war
Interactive climate change disaster map from the British government.
This is very nice. Also, we had no idea southern Africa was in such peril…