Saturday, November 22, 2014

October 2014: Earth's Third Consecutive Warmest Month on Record

http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2865

By: Dr. Jeff Masters , 12:42 PM GMT on November 21, 2014

October 2014 was the warmest October on record, and the year-to-date-period January - October was Earth's warmest such period since record keeping began in 1880, said NOAA's National Climatic Data Center (NCDC) on Thursday. NOAA also rated the past 12 months--November 2013 through October 2014--as the warmest consecutive 12-month period among all months since records began in 1880. "It is becoming pretty clear that 2014 will end up as the warmest year on record," said Deke Arndt, climate monitoring chief for NCDC in an interview with Associated Press. NASA also rated October 2014 as the warmest October on record, tied with 2005. October is the fifth month of 2014 ranked by NOAA as the warmest on record; May, June, August and September 2014 were also the warmest such months on record, and April 2014 was the second warmest April on record. Global ocean temperatures during October 2014 were the warmest on record. This marks the sixth month in a row (beginning in May 2014) that the global ocean temperature broke its monthly temperature record. Global land temperatures in October 2014 were the 5th warmest on record.

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Remarkably, the record-warm global sea surface temperatures over the past six months have occurred in the absence of El Niño, a large-scale warming of the eastern and central equatorial Pacific Ocean that historically has been present whenever record global ocean temperatures have occurred.

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Arctic sea ice extent during October 2014 was the 6th lowest in the 36-year satellite record and was similar to October 2013 levels, according to the National Snow and Ice Data Center (NSIDC).

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Commentary
Earth's temperature so far in 2014 has been the warmest ever recorded. This comes despite the absence of an El Niño event, which is usually required in order for a new temperature record to be set. If NOAA's predicted 58% chance of an El Niño event this winter verifies, we could easily have two consecutive warmest years on record--2014 and 2015. Opponents of climate action have pushed the idea that Earth's climate has not warmed since 1998, but that is false assertion that uses a cherry-picked year in an attempt to confuse people about the long-term climate warming that is occurring. Earth's climate is warming, and based on the evidence, more than 97% of climate scientists have concluded that humans are responsible. Climate change is already causing significant impacts to people and ecosystems, and these impacts will grow much more severe in the coming years. We can choose to take economically sensible steps to lessen the damage of climate change, and the cost of inaction is much higher than the cost of action.

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