Every year extraordinary weather events rock the Earth. Records that have stood centuries are broken. Great floods, droughts, and storms affect millions of people, and truly exceptional weather events unprecedented in human history may occur. But the wild roller-coaster ride of incredible weather events during 2010, in my mind, makes that year the planet's most extraordinary year for extreme weather since reliable global upper-air data began in the late 1940s. Never in my 30 years as a meteorologist have I witnessed a year like 2010--the astonishing number of weather disasters and unprecedented wild swings in Earth's atmospheric circulation were like nothing I've seen. The pace of incredible extreme weather events in the U.S. over the past few months have kept me so busy that I've been unable to write-up a retrospective look at the weather events of 2010. But I've finally managed to finish, so fasten your seat belts for a tour through the top twenty most remarkable weather events of 2010. At the end, I'll reflect on what the wild weather events of 2010 and 2011 imply for our future.
[Highlights follow. See the original article for details.]
Earth's hottest year on record
Most extreme winter Arctic atmospheric circulation on record; "Snowmageddon" results
Arctic sea ice: lowest volume on record, 3rd lowest extent
Record melting in Greenland, and a massive calving event
Second worst coral bleaching year
Amazon rainforest experiences its 2nd 100-year drought in 5 years
A hyperactive Atlantic hurricane season: 3rd busiest on record
Strongest storm in Southwestern U.S. history
Strongest non-coastal storm in U.S. history
Weakest and latest-ending East Asian monsoon on record
No monsoon depressions in India's Southwest Monsoon for 2nd time in 134 years
The Pakistani flood: most expensive natural disaster in Pakistan's history
The Russian heat wave and drought: deadliest heat wave in human history
Record rains trigger Australia's most expensive natural disaster in history
Heaviest rains on record trigger Colombia's worst flooding disaster in history
Tennessee's 1-in-1000 year flood kills 30, does $2.4 billion in damage
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Where will Earth's climate go from here?
The pace of extreme weather events has remained remarkably high during 2011, giving rise to the question--is the "Global Weirding" of 2010 and 2011 the new normal? Has human-caused climate change destabilized the climate, bringing these extreme, unprecedented weather events? Any one of the extreme weather events of 2010 or 2011 could have occurred naturally sometime during the past 1,000 years. But it is highly improbable that the remarkable extreme weather events of 2010 and 2011 could have all happened in such a short period of time without some powerful climate-altering force at work. The best science we have right now maintains that human-caused emissions of heat-trapping gases like CO2 are the most likely cause of such a climate-altering force. [emphasis by Dr. Masters]
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A warmer planet has more energy to power stronger storms, hotter heat waves, more intense droughts, heavier flooding rains, and record glacier melt that will drive accelerating sea level rise. I expect that by 20 - 30 years from now, extreme weather years like we witnessed in 2010 will become the new normal.
Finally, I'll leave you with a quote from Dr. Ricky Rood's climate change blog, in his recent post,Changing the Conversation: Extreme Weather and Climate: "Given that greenhouse gases are well known to hold energy close to the Earth, those who deny a human-caused impact on weather need to pose a viable mechanism of how the Earth can hold in more energy and the weather not be changed. Think about it."
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