NOAA links extreme weather to climate change
No cutesy headline for this post -- it's too important.
From CBS News, the flash, apparently official:
(CBS News) On Tuesday, for the first time, government scientists are saying recent extreme weather events are likely connected to man-made climate change. It's the conclusion of a report by the National Oceanic and Atmospheric Administration.
The report says last year's record drought in Texas was made "roughly 20 times more likely" because of man made climate change, specifically meaning warming that comes from greenhouse gasses like carbon dioxide. The study, requested by NOAA, looked at 50 years of weather data in Texas and concluded that man-made warming had to be a factor in the drought.
The head of NOAA's climate office, Tom Karl, said: "What we're seeing, not only in Texas but in other phenomena in other parts of the world, where we can't explain these events by natural variability alone. They're just too rare, too uncommon."
Aside from the Texas drought, NOAA called the entire year of 2011 the year of extreme weather events, starting in Joplin, Missouri.
Last year's record warm November in the UK – the second hottest since records began in 1659 – was at least 60 times more likely to happen because of climate change than owing to natural variations in the earth's weather systems, according to the peer-reviewed studies by the National Oceanic and Atmospheric Administration in the US, and the Met Office in the UK. The devastating heatwave that blighted farmers in Texas in the US last year, destroying crop yields in another record "extreme weather event", was about 20 times more likely to have happened owing to climate change than to natural variation.
Oh, and also this from the widely respected New Scientist:
IT HAS been yet another week of extraordinary weather. Torrential rainfall caused chaos across the UK. A record-breaking heatwave drifted across the US, broken by freak thunderstorms that left a trail of destruction from Chicago to Washington DC. Meanwhile, in India and Bangladesh more than 100 people were killed and half a million fled when the monsoon arrived with a vengeance.
We have become used to reports of extreme weather events playing down any connection with climate change. The refrain is usually along the lines of "you cannot attribute any single event to global warming". But increasingly this is no longer the case. The science of climate attribution - which makes causal connections between climate change and weather events - is advancing rapidly, and with it our understanding of what we can expect in years to come.
From killer heatwaves to destructive floods, the effects of global warming are becoming ever more obvious - and we ain't seen nothing yet. Our weather is not only becoming more extreme as a result of global warming, it is becoming even more extreme than climate scientists predicted.
Nothing to add..just passing these things along.