Real Climate Demolishes Forbes' Latest Foray Into Denialist Idiocy

[hatrack]

EDIT

Does he have a point? Is there really much of substance that qualifies as good news justifying his conclusion? The value of his piece depends crucially on how newsworthy his good news was, and how these items fit into the big picture. He counted eleven assertions of fact in his gallop. Let’s look at each of them and place them in context. Bell especially emphasizes his first two points, so we examine them in detail (quotes from the article are bolded).

EDIT

A globally viewed December 2005 BBC feature alarmingly reported that two massive glaciers in eastern Greenland, Kangderlugssuaq and Helheim, were melting, with water “racing to the sea.” … Only 18 months later, and despite slightly warmer temperatures, the melting rate of both glaciers Kangderlugssuaq and Helheim not only slowed down and stopped, but actually reversed.

This again is not 2010 news since it happened in 2007. It is a fact that after a massive retreat from 1991 to 2005 Kangderlugssuaq regained a tiny fraction, less than a tenth, of that retreat by 2007. This may be of interest to glacier dynamicists, but its climatological importance is nil. Glaciers worldwide are in massive retreat. Indeed, Kangerdlugssuaq Glacier lost another 5.2 square km in 2009.

The ice cap has been accumulating snow growth at a rate of about 2.1 inches per year

The top of the ice caps are growing slightly as expected, since warmer air contains more moisture which will fall in those places as snow. The issue that the public ought to pay attention to is the much larger and accelerating melt at the edge of the ice sheet. This is not especially 2010 news, but in any case it is sleight of hand. The real action is the instability at the edges, which already dominates the accumulation in the interior and looks likely to overwhelm it.

The new sea level, which has been stable, has not changed in the last 35 years.

Just wrong:


Figure showing the last 18 years of sea level rise derived from satellites and validated against tide gauges. (Update: longer records available here).

EDIT

The Northwest Passage has certainly opened up before.

This is untrue in recorded history. The traversals prior to 2007 were in very specialized boats and often took years. In 2007 and 2010, genuine shipping lanes opened up for the first time. It was possibly open in the mid-Holocene about 6,000 to 8,000 years ago and was certainly open millions of years ago. But since the opening of the passage itself received far too little attention (in our opinion), it is hard to see what Bell is complaining about.

EDIT

http://www.realclimate.org/index.php/archives/2011/01/forbes-rich-list-of-nonsense/#more-5984

[joshcryer]

1. Thanks, starting off great, the media dropped the ball on climate change this past year.

Hell, I followed the temperature trend throughout the year, it was pretty abysmal.

[jpak]

2. deniers = liars

yup