bnzoo
Guest
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 Posted: Tue Oct 28, 2008 7:15 am Post subject: The Central Facts About "Changes In Crop Production" |
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18 October 2008
You have said: "We are likely to see changes in crop production ..."
The facts about crop production are that it is susceptible to changes in
the climate, but only if the changes are very substantial.
You have only to look at the wide latitudinal distribution of the
world>s staple crops to appreciate that - even if "global warming" were
continuing, which it is not, and even if humans were the cause, which to
a great extent we are not - even substantial rises in temperature are
not likely to have an adverse effect on crop yields.
Indeed, the UN>s climate panel says that increases of up to 4 °F would
be likely actually to increase crop yields.
The astronomer Herschel, in 1801, noticed when reading a table of grain
prices in Adam Smith>s Wealth of Nations that the price of grain was
inversely correlated with the number of sunspots visible on the surface
of the Sun. The warmer the weather, the higher the grain yield, and - in
accordance with the law of supply and demand - the lower the price.
So there is no scientific basis for your implication that "changes in
crop production" will be negative, or that any negative changes will be
caused by anthropogenic "global warming".
http://www.americanthinker.com/2008/10/an_open_letter_from_the_viscou_2.html
--
Warmest Regards
Bonzo
: "They don>t tell you, that, in their computer models, it>s assumed
that CO2 drives global warming. In other words, you assume the result
and say the computer model proves we were right. It>s garbage in,
garbage out. If you don>t program the computers to cause temperatures to
rise with CO2, then you have nothing." Dr. Don J. Easterbrook, Professor
Emeritus Geology, Western Washington University |
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