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Friday, March 27, 2015

What global warming looks like for the past two decades

The so called "pause" in global warming is actually a cooling of the Northern hemisphere winters (NH winter or boreal winter), specifically the NH land temperatures have changed to a cooling trend, and it is this cooling that has caused the annual global mean to be "flat", slightly cooler, or a slight warming, depending on which data and analysis you choose to believe.

But even surface station data shows the same thing as satellite data.  NH winters are cooling, and it's effecting the entire years average.

You can see it using GISS maps, the NCDC global data, as well as global snowfall data, and especially using the high quality NCDC US climate data.


NH winter land so negative, it makes the global winter trend negative.
All the other seasons are warming, and the NH winter trend for the ocean is warming.




US winter data 




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