September 2012 temperatures as compared to 1981-2010 baseline. Graph courtesy of NOAA. Click to enlarge.
September 2012 tied with 2005 for the warmest on record around the globe, according to new data released by the National Oceanic and Atmospheric Administration (NOAA). The average land and ocean temperature was 16.27 degrees Celsius (61.31 degrees Fahrenheit) for this September, 0.67 degrees Celsius (1.21 degrees Fahrenheit) above the 20th Century average for the month. Shockingly, this is the 331st month in a row that has been above the 20th Century average.
The NOAA says that temperatures have been steadily on the rise this year as La Niña conditions faded around February. Currently we are in a neutral phase, bordering on an El Nino.
“If this warmth continues through the end of the year, 2012 will surpass 2011 as the warmest La Niña year since the Climate Prediction Center began monitoring ENSO conditions in 1950,” reads the NOAA report.
To date (from January through September) 2012 is the eighth warmest year on record with data going back to 1880. How 2012 measures up in total depends on global temperatures through the rest of the year. Currently, data sets show 2005 and 2010 as the warmest years on record.
Global temperature have risen by around 0.8 degrees Celsius (1.44 degrees Fahrenheit) over the past century due to anthropogenic climate change. Greenhouse gas emissions worldwide, which trap heat in the atmosphere, continue to rise despite decades of attention to the crisis.
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Nary a mention of climate change during U.S. presidential debate
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Sea ice falls to record low with over two weeks of melting left
(08/27/2012) One of the most visible impacts of climate change—melting summer sea ice in the Arctic—just hit a new milestone. Scientists with the U.S. National Snow and Ice Data Center (NSIDC) have declared that this year’s Arctic sea ice extent dipped below the previous record set in 2007 as of yesterday. The record is even more notable, however, as it occurred more than a fortnight before the Arctic’s usual ice melt season ends, meaning the old record will likely not just be supplanted, but shattered.
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Fourth warmest July yet around the world
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