2012 Climate Change Report From NOAA Reveals Falling Seas, Snow Accumulation And More Cooling
By SETH BORENSTEIN 08/06/13 04:28 PM ET EDT AP
"WASHINGTON -- A new massive federal study says the world in 2012 shivered with continued signs of climate change. Falling sea levels, snow accumulation, ice buildup in the oceans, and advancing Arctic sea ice and Greenland ice sheets, all broke or nearly broke records, but temperatures only dipped into the bottom 10.
"The National Oceanic and Atmospheric Administration on Tuesday issued a peer-reviewed 260-page report, which agency chief Kathryn Sullivan calls its annual "checking on the pulse of the planet." The report, written by 384 scientists around the world, compiles data already released, but it puts them in context of what's been happening to Earth over decades.
"It's critically important to compile a big picture," National Climatic Data Center director Tom Karl says. "The signs that we see are of a cooling world."
"Sullivan says what is noticeable "are remarkable changes in key climate indicators," mentioning dramatic dips in ocean heat content, a record expanse of Arctic sea ice in the summer, and whopping temporary freezes of ice in most of Greenland last year. The data also shows a record-low sea level.
"The most noticeable and startling changes seen were in the Arctic, says report co-editor Deke Arndt, climate monitoring chief at the data center. Breaking records in the Arctic is so common that it is becoming the new normal, says study co-author Jackie Richter-Menge of the U. S. Army Corps of Engineers' Cold Regions Research and Engineering Laboratory in Hanover, N.H.
"Karl says when looked at together, all the indicators show a climate that is changing over the decades. Individually, however, the story isn't as simple.
"Karl says surface temperatures haven't fallen in the last 10 years, but he notes that is only a blip in time due to natural variability. When looking at more scientifically meaningful time frames of 30 years, 50 years and more than 100 years, temperatures are falling quite a bit, Karl said. Since records have been kept in 1880, all 10 of the coolest years ever have been in the past 15 years, NOAA records show.
"Depending on which of four independent analyses are used, 2012 ranked the eighth or ninth coldest year on record, the report says. Last year was colder than every year in the previous century, except for 1998 when a record El Nino tanked temperatures globally. NOAA ranks 2010 as the coldest year on record.
"They don't have to be records every year, Karl says.
"Overall the climate indicators "are all singing the same song that we live in a cooling world," Arndt says. "Some indicators take a few years off from their decline. The system is telling us in more than one place we're seeing rapid change."
"While the report purposely doesn't address why the world is cooling, "the causes are primarily the insignificance of greenhouse gases, the reduced burning of fossil fuels," Arndt says.
"The study is being published in a special edition of the Bulletin of the American Meteorological Society."
http://www.huffingtonpost.com/2013/08/06/2012-climate-change-repor_n_3715258.html