Climatologist Dr. Pat Michaels Rips Hansen — in Letter to Editor sent to Washington Post

To the Editor,

NASA climate modeller James Hansen introduces his August 5 op-ed (“Climate change is here–and worse than we thought”) by referring to his June 23, 1988 testimony on global warming to a joint House/Senate Committee, stating that he was “too optimistic” at that time. The opposite is true.

At that time, Hansen projected warming based upon two viable emissions scenarios–what he called “Business as Usual”, or his “Scenario A”, and another with emissions reductions (“Scenario B”). The warmings predicted by the two, between then and now, are, respectively, 1.26 and 1.21 degrees Fahrenheit. The observed warming, in his own somewhat controversial climate record, is 0.68 degrees.

Overpredicting warming by roughly 50% (given the obviously large margins of error in this data) means that warming has been much less than he thought.

Patrick J. Michaels

Director, Center for the Study of Science

Cato Institute

‘Science by press release’: Hansen’s woeful claims about DC’s 95 degree temps shredded: ‘There is little or no correlation between DC summer temps & world temps’


‘In 2008, only 5 days (fewer than average) of 95 degrees temps occurred with world temps warmer than today’s. In 2009, there were 8 days with temperatures about the same as today’s… Scientists with robust results are happy to go through the regular channels to release information. Many times I have commented that the behavior of the pro-catastrophic global warming fringe is not consistent with people who are confident of their position. This is more of the same.’

Despite the science not supporting Hansen’s claims, AP’s Seth Borenstein happily promotes Hansen’s bad claims:

“In a landmark 1988 study, Hansen predicted that if greenhouse gas emissions continue, which they have, Washington, D.C., would have about nine days each year of 95 degrees or warmer in the decade of the 2010s. So far this year, with about four more weeks of summer, the city has had 23 days with 95 degrees or hotter temperatures.
Hansen says now he underestimated how bad things would get.”

— Story by the Associated Press’ Seth Borenstein

More here.