jm + global-warming   3

Loss of Arctic's Reflective Sea Ice Will Advance Global Warming by 25 Years
“Losing the reflective power of Arctic sea ice will lead to warming equivalent to one trillion tons of CO2 and advance the 2ºC threshold by 25 years. Any rational policy would make preventing this a top climate priority for world leaders,” said Ramanathan, a professor of atmospheric and climate sciences at Scripps. [....]

Computer forecast models are actually underestimating the extent of this trend.  “We analyzed 40 climate models from modeling centers around the world,” said Eisenman, a professor of climate, atmospheric science, and physical oceanography at Scripps. “Not a single one of the models simulated as much Arctic sea ice retreat per degree of global warming as has been observed during recent decades.”
arctic  climate-change  climate  global-warming  fear  ice  earth 
22 days ago by jm
March 2016's shocking global warming temperature record
Keep in mind that it took from the dawn of the industrial age until last October to reach the first 1.0 degree Celsius, and we’ve come as much as an extra 0.4 degrees further in just the last five months. Even accounting for the margin of error associated with these preliminary datasets, that means it’s virtually certain that February handily beat the record set just last month for the most anomalously warm month ever recorded. That’s stunning.


eek.
global-warming  climate-change  2016 
march 2016 by jm

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