Than 1000 International Scientists Dissent Over Man-Made Global ...

which can't even simulate some basic processes of Arizona climate, for example, the
summer monsoon," Castro said. (LINK) [Castro was moved to this section to more
accurately reflect his views.]
Geologist Morten Hald, an Arctic expert at the University of Tromso in Norway,
questioned the reliability of computer models predicting a melting Arctic. "The main
problem is that these models are often based on relatively new climate data. The
thermometer has only been in existence for 150 years and information on temperature
which is 150 years old does not capture the large natural changes," Hald, who is
participating with a Norwegian national team in Arctic climate research, said in a May 18,
2007 article. (LINK) The article continued, "Professor Hald believes the models which are
utilized to make prognoses about the future climate changes consider paleoclimate only to a
minor degree." "Studies of warm periods in the past, like during the Stone Ages can
provide valuable knowledge to understand and tackle the warmer climate in the future,"
Hald explained. Hald has also expressed uncertainty about how to evaluate various climate
forcing factors and predict future climate after a study of patterns and variability of past
climate in the Norwegian Region. ―The instrumental record of climate variability is too
short and spatially incomplete to reveal the full range of seasonal to millennial-scale
climate variability, or to provide empirical examples of how the climate system responds to
large changes in climate forcing. This recent record is also a complex reflection of both
natural and anthropogenic forcing (e.g., trace gases and aerosols). Various proxy sources,
on the other hand, provide the much wider range of realizations needed to describe and
understand the full range of natural climate system behavior,‖ according to Hald. ―The
reconstructions clearly show that climate in the Norwegian Region has been both
significantly warmer and cooler that it is today during the Holocene. Both rapid (decadal)
changes, as well as more gradual (century-millennial) changes have been observed during
the past,‖ he added. (LINK) [Hald was moved to this section to more accurately reflect his
views.]
Dr. Richard Tol, the director of the Centre for Marine and Atmospheric Science, and
a prominent economist with Hamburg University in Germany, dismissed the UN IPCC
touted Stern Report on the economics of climate change as "preposterous." Tol, one of the
authors of three of the IPCC Working Groups, dismissed the idea that mankind must act
now to prevent catastrophic global warming, according a February 2, 2007 article in
Canada's National Post. "Tol doesn't think the evidence is in on global warming and its
effects, he doesn't think there's reason to rush to action, and he doesn't think that crash
programs to curb global warming are called for," the National Post article explained. Tol
debunked the Stern review as "alarmist and incompetent." "There is no risk of damage
[from global warming] that would force us to act injudiciously," according to Tol. "We've
got enough time to look for the economically most effective options, rather than dash into
'actionism,' which then becomes very expensive," he concluded. Tol wrote the critique
despite the fact that his work was cited by the Stern Report no less than 63 times. (LINK)
In a separate November 11, 2006 interview, Tol specifically critiqued the UN IPCC
process. ―Over the years, the IPCC has become ever greener and the few economists, who
were previously involved, have been pushed out. Obviously, this casts doubt on the quality
of the results,‖ Tol explained. (LINK) Tol has also asserted that the benefits of a warmer
world are frequently overlooked. Tol noted that "warming temperatures will mean that in
2050 there will be about 40,000 fewer deaths in Germany attributable to cold-related
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