Global Climate Change
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May 21 | News
According
to a recent computational study, pollution is warming the atmosphere by
intensifying summer thunderstorm clouds. The effect, say researchers,
outweigh any cooling factors provided by clouds, and global climate
models don't see this effect because thunderstorm clouds simulated in
those models do not include enough detail.
May 15 | News
A
former U.K. government advisor and chemical engineer recently published
an article that discussed how dispersing sub-micrometer
light-scattering particles into the upper atmosphere could help to
combat climate change. Author Peter Davidson says the effect would
replicate the cooling that occurred after the 1991 eruption of Mount
Pinatubo.
May 15 | News
According
to predictions made by climate researchers with the Alfred Wegener
Institute for Polar and Marine Research, the Filchner-Ronne Ice Shelf
fringing the Weddell Sea in Antarctica may start to melt rapidly in this
century and no longer act as a barrier for ice streams draining the
Antarctic Ice Sheet. They claim this finding refutes previous
assumptions that climate change would not affect the Weddell Sea.
May 9 | News
Americans' support
for government action on global warming remains high but has dropped
during the
past two years, according to a new survey by Stanford University researchers in
collaboration
with Ipsos Public Affairs. Political rhetoric and cooler-than-average
weather
appear to have influenced the shift, but economics doesn't appear to
have
played a role.
May 8 | News
One popular climate record that shows a slower atmospheric warming trend than other studies contains a data calibration problem, and when the problem is corrected the results fall in line with other records and climate models, according to a new University of Washington study.
May 3 | News
To
help predict the rate at which plants respond to changing climate
conditions, researchers use experiments that manipulate the temperature
surrounding small plots of plants to gauge how specific plants will
react to higher temperatures. But wild plants are leafing out and
flowering sooner each year than predicted by results from these
experiments, according to data from a major new archive of historical
observations.
Apr 25 | News
Seeking
out statistical techniques that had not previously been applied to
finding the current rate of sea level rise and the rates of ice sheet
melting, scientists in Canada have developed a new method to distinguish
sea-level fingerprints. The technique relies on the fact that the
historical pattern for each ice sheet is unique and is preserved.
Apr 23 | News
In
a study from Stanford University and Purdue University, researchers
have shown for the first time that climate change may force the U.S.
corn belt to move north in the next 10 years, escaping devastating heat
waves. In turn, this will bring substantial price swings to the corn
market, adversely affecting industries like food and biofuels.
Apr 16 | News
To
the world's military leaders, the debate over climate change is long
over. They are preparing for a new kind of Cold War in the Arctic,
anticipating that rising temperatures there will open up a treasure
trove of resources, long-dreamed-of sea lanes and a slew of potential
conflicts.
Apr 11 | News
Global
warming may initially make the grass greener, but not for long,
according to new research results. Ecologists subjected four grassland
ecosystems to simulated climate change during a decade-long study.
Plants grew more the first year in the global warming treatment, but
this effect progressively diminished over the next nine years and
finally disappeared.
