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by
Jonathan Robison
Authority Explorer |
As
global-warmers are celebrating the signing of a new
international agreement to control emissions of
greenhouse gases, researchers are reporting that global
warming is causing lovelorn frogs to croak earlier in
the spring.
In yet
another strain to support the idea of the gradual (or
not so gradual) warming of our earth, scientists and
researchers are comparing data on the earliest croaking
dates of six species of frogs in the Ithaca, New York
area. The data were collected during two time
periods, between 1900-1912 and 1990-1999.
Upon
completion of the unique study, they reported in the
August issue of Conservation Biology that
four of the frog species (spring peeper, wood frog, gray
tree frog, and bullfrog) are croaking earlier, while two
species (green frog and American toad) have not changed
their earliest croaking dates.
"This
is the strongest evidence of a biological response to
climate change in eastern North America," stated
researchers.
"Pathetic
evidence," I believe he meant to say.
First
off, the data collected between the years 1900-1912 were
made by a Cornell University Biologist who said that his
main goal was to detect the earliest events in the
breeding cycles of frogs. On the other hand, the
data from 1990-1999 were collected by simple volunteers
who were not thus motivated, only desiring the bare
croaking data. It's safe to say that they missed
the earliest croaking, forcing a comparison between the
two events virtually useless.
Another
problem is the temperature data. Croaking begins
in March. The researchers, however, did not report any
statistically significant increase in temperature
between 1900 and 1999 for March.
Bottom
line. Prove global warming by some other means,
and leave our croaking amphibian friends alone.
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