skeptics handbook

Debunking Joanne Nova's 'Skeptics Handbook' part 3: The Climate Models Have it Right

This is my final posting debunking professional climate denier Joanne Nova’s “The Skeptics Handbook.”

Nova’s final pseudo-scientific arguments is greenhouse signature.

The greenhouse signature argument boils down to the following:

Because weather balloons haven’t yet been able to locate the “hot spot” – a patch of air above the tropics that should show signs of greenhouse gas-induced warming (hence, the greenhouse “signature”) – there must be something else causing the warming. This was somehow also proof that the models had it all wrong – since they had predicted that, in the tropics, the warming of the troposphere should have been larger than that of the surface.

Debunking Joanne Nova's 'Skeptics Handbook' part 2: Yes, Global Warming is Real and it's Still Happening

Today we’ll look at two more of the (supposedly) bullet-proof points in Joanne Nova’s “The Skeptics Handbook.”

“Professional Speaker” turned climate expert Nova rehashes two of the more common skeptic talking points, that: the world is no longer warming and the Vostok ice core record proves that rising CO2 emissions are not the cause of warmer temperatures.

As skeptics love to point out, the planet has not appreciably warmed over the last decade even though carbon dioxide levels have greatly increased. While it’s true that surface temperatures have remained essentially flat over the last 10 years, taking such a myopic view of the temperature record obscures the much more meaningful long-term trends.

Indeed, if you look at the temperature record of the last 150 years or so, you’ll find it extremely hard not to notice the obvious upward trend (there’s a reason why the nine warmest years on record have all occurred between 1998 and 2008).

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