Last month tied as third warmest October on record for the globe Year-to-date remains record warm

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CaptinCrunch
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Last month tied as third warmest October on record for the globe Year-to-date remains record warm

#1 Postby CaptinCrunch » Thu Nov 17, 2016 3:04 pm

Global highlights: October 2016

The October temperature across global land and ocean surfaces was 1.31°F above the 20th century average of 57.1°F. This tied with 2003 as third highest for October in the 1880–2016 record. This October was 0.47°F cooler than the record warmth of October 2015 when El Niño conditions were strengthening. The October 2016 departure from average was also 0.90°F cooler than the all-time record warmth of March 2016 when the El Ni& ntilde;o was near the end of its peak.

The October globally averaged land surface temperature was 1.37°F above the 20th century average of 48.7°F. This value was the 16th highest October land global temperature in the 1880–2016 record.

The October globally averaged sea surface temperature was 1.30°F above the 20th century monthly average of 60.6°F. This value was the second highest global ocean temperature for October in the 1880–2016 record, 0.25°F lower than the record warmth of October 2015.

The average Arctic sea ice extent for October 2016 was 980,000 square miles (28.5 percent) below the 1981–2010 average, according to analysis by the National Snow and Ice Data Center using data from NOAA and NASA. This was the smallest October extent since records began in 1979; the footprint of "missing" ice was larger than the combined size of Alaska and Texas. Sea ice growth was abnormally slow during the first half of October. By month's end, daily sea ice extent values were record low.

Antarctic sea ice extent during October 2016 was 290,000 square miles (4.0 percent) below the 1981–2010 average. This was the second smallest Antarctic sea ice extent on record for October, behind only 1986.

Global highlights: Year-to-date (January–October 2016)

The year-to-date temperature across global land and ocean surfaces was 1.75°F above the 20th century average of 57.4°F. This was the highest for January–October in the 1880–2016 record, surpassing the previous record set in 2015 by 0.18°F.

The year-to-date globally averaged land surface temperature was 2.66°F above the 20th century average. This was the highest for January–October in the 1880–2016 record, exceeding the previous record of 2015 by 0.34°F.

The year-to-date globally averaged sea surface temperature was 1.39°F above the 20th century average. This was the highest for January–October in the 1880–2016, surpassing the previous record of 2015 by 0.09°F.
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Re: Last month tied as third warmest October on record for the globe Year-to-date remains record warm

#2 Postby CaptinCrunch » Thu Nov 17, 2016 3:30 pm

October was the second hottest on record for the planet, NASA data released Tuesday shows. The month was the latest in a string of record- and near record-warm months that will see 2016 easily take the title of hottest year in the books.

While an exceptionally strong El Niño helped to boost temperatures early in the year, most of the excess heat has built up over decades as greenhouse gases have accumulated in the atmosphere. Discussions to implement a landmark agreement to limit manmade warming are currently underway in Morocco, though negotiators are concerned that the election of Donald Trump could derail these efforts. October was 1.6˚F (0.89˚C) warmer than the 1951-1980 average that NASA uses as a baseline, but well below October 2015, which was the first month in NASA records to reach 1˚C above average.

El Niño, which features hotter-than-normal tropical Pacific waters, tends to elevate global temperatures. It had just begun to ramp up by mid-autumn last year and helped to keep global temperatures over that 1˚C mark through April. Now the tropics have transitioned into a weak La Nina, with cooler Pacific waters, which tends to depress global temperatures. But even La Nina years now are warmer than El Niño years several decades ago because of the long-term warming caused by carbon dioxide and other heat-trapping gases emitted into the atmosphere.

Because of the combination of El Niño and manmade warming, 2016 will best 2015 as the hottest year on record, the third record-warm year in a row, the World Meteorological Organization told delegates at the U.N. climate meeting in Morocco. Those negotiators are working to fulfill the Paris accord agreed upon last year and that just went into effect. That accord pledges to limit warming to less than 1.5˚C (2.7˚F) above pre-industrial times by the end of the century.

To show how close to that benchmark the world already is, Climate Central has been re-analyzing temperatures numbers released by NASA and the National Oceanic and Atmospheric Administration to compare them to temperatures closer to the preindustrial era. Through September, the global temperature was 1.27°C (2.3°F) above the average from 1881-1910. Climate experts and advocates are concerned that President-Elect Trump will derail progress on reducing greenhouse gas emissions, as he pledged during his campaign to pull the U.S. out of the Paris pact and to dismantle the Clean Power Plan, which is aimed at reducing domestic greenhouse gas emissions.
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