JoNova

A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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Not FOUR degrees, 1.4 degrees

ADDENDUM BELOW (with answers from Christopher Monckton)

The December SPPI monthly report came out on Jan 23. As usual, it contains graphs of the latest juiciest data: sea levels, ice, sunspots, cyclones, global temperature trends and the latest papers. Here’s a few snippets that caught my eye.

Get ready for 1.4 degrees (or more… or less).

Global Temperature Trends 1981-2009

Call me a cherry picker, but going by the full satellite data record we have and drawing a simplistic straight line, we are rocketing towards 1.4 degrees of warming by 2100, (but only if that trend of the last 30 years doesn’t change, which it is, every year). For those who are new to this, there are two interpretations of the satellite data and this neatly combines both of them (UAH and RSS) and makes one wiggly line out of masses of data.  Not surprisingly, the SPPI team have chosen to ignore the surface record of airports and air-conditioners, “ground based thermometers”.

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