Climate Change May Knock Back U.S. Corn Yields

Climate change may trim corn yields
Wed May 28, 2008 1:29am EDT  NEW YORK

(Reuters) – Warmer temperatures brought on by climate change could trim output of some U.S. crops like corn in coming decades, but increase yields from other crops like soybeans, government scientists said on Tuesday.

U.S. corn output dips and rises from year-to-year but has risen overall as farmers use new seeds and fertilizers to maximize growth.

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Climate Change, Melting Ice…Earthquakes?

Alaska researchers cited some evidence that loss of hugely heavy ice
masses on mountains will be releasing earthquakes that are currently
restrained under great pressure from above.

So earthquakes become not quite off-topic for a climate list.

  http://www.sciencedaily.com/releases/2008/05/080525132352.htm
(Credit: Aaron Velasco, University of Texas at El Paso)

This map of the world shows seismic stations that detected more than
twice the normal number of small, nearby earthquakes after the
passage of what are known as “surface waves” from major quakes that
were centered hundreds to thousands of miles away and occurred from
1992 through 2006. A new study co-authored by University of Utah
seismologist Kris Pankow found that at least 12 of the 15 major
earthquakes (greater than magnitude-7) during 1992-2006 triggered
small quakes in distant parts of the world. Scientists once believed
big quakes could not trigger distant tremors.

More, much more, at
http://www.sciencedaily.com/releases/2008/05/080525132352.htm

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Climate Change and the American West

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“…  profound impacts on the mountains, streams and range …”

  “The trends are in place,” said Fee Busby,  rangeland ecologist …
“The trends are going to continue.”

The report will be posted online this morning at
www.climatescience.gov/Library/sap/sap4-3/default.php.
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The Salt Lake Tribune
05/27/2008

USDA on global warming
Climate report adds more gloom
Review out today offers clearer picture of how warming will affect
scenery familiar to Utahns
By Judy Fahys

      A landscape plagued with dust storms and drought, rangeland that
won’t support cattle, streams too hot for trout, forests felled by
beetles and fire – it’s all part of the scenario painted in a new
report on climate change by the U.S. Department of Agriculture.

     The projections are not exactly new.

     Many of them have been reported by scientists and the media in
the past five years.

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Climate and Food Production: Insects vs. Livestock

http://sciencenews.org/view/feature/id/32443/title/Insects_%28the_original_white_meat%29>

“For crickets fed diets comparable in quality to the feed given to
conventional Western livestock, diet conversion efficiency is about
twice as high as for broiler chicks and pigs, four times higher than
sheep and nearly six times higher than steers, DeFoliart reports.
Insects’ quick reproduction and high fecundity makes them look even
more environmentally attractive. For the crickets, DeFoliart has
calculated, this translates into “a true food conversion efficiency
close to 20 times better than that of beef.”

Gracer likens these differences to gas-guzzling versus gas-sipping
vehicles: “Cows and pigs are the SUVs of the food world. And
bugs-they’re the Priuses, maybe even bicycles.”

http://sciencenews.org/view/feature/id/32443/title/Insects_%28the_original_white_meat%29>

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