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Science Forum Index » Geology - Meteorology Forum » Most Of The Warming From 1990 Is Due To Fudged Data...
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| ZB00N... |
 Posted: Sun Jul 20, 2008 8:08 pm |
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Guest
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21 Jul 2008
QUOTE: I believe the recent warming is best comparable to or less than
the warming in the 1930s and is now over.
Joseph D'Aleo, former Professor of Meteorology at Lyndon State College,
says there may be a good reason why some land measurerments of
temperature detected a burst of global warming from 1990 greater than
what satellites could detect:
Land-based monitoring Station drop-out has occurred-- from a peak of
6,000 stations in 1970 to 2,000 today. The biggest dropoff occurred
around 1990. Many of the stations that were dropped were rural. A larger
percentage of the stations remaining were urban.
And that's precisely when the average temperature, as detected by the
remaining stations, soared (see graph 2). As D'Aleo asks, were these
stations measuring a warmer climate or just a suddenly higher proportion
of warmer cities?
He concludes:
As stated earlier and shown here, though there has clearly been some
cyclical warming in recent decades, the global surface station based
data is seriously compromised by urbanization and other local factors
(land-use /land-cover, improper siting, station dropout, instrument
changes unaccounted for and missing data) and thus the data bases
overestimate the warming.
Numerous peer-reviewed papers (referenced below) in the last several
years have shown this overestimation may be the order of 30 to 50%.
I believe the recent warming is best comparable to or less than the
warming in the 1930s and is now over.
http://blogs.news.com.au/heraldsun/andrewbolt/index.php/heraldsun/comments/russians_warm_causes_co2_not_vice_versa/
--
Warmest Regards
Bonzo
"Let me say it plainly: The environmental movement has been taken over
by anti-capitalist radicals who are using it to wage war against
capitalism and campaign for liberal Democrats. Protecting the
environment is now number three, or lower, on their list of priorities."
Joe Bast, President, Heartland Institute, One-time Ardent
Environmentalist, Has seen it from both sides. |
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