In this Feb. 5, 2012 file photo, people walk in the South Chagrin
Reservation Metropark on a sunny and mild afternoon in Bentleyville,
Ohio. A new poll shows Americans' belief in global warming is on the
rise, along with temperatures and surprising weather changes. The survey
by the University of Michigan and Muhlenberg College says 62 percent of
those asked last December think the Earth is getting warmer. That's an
increase from 55 percent in the spring of that year. It's the highest
percentage in two years.
(AP Photo/Amy Sancetta, File)
Americans' belief in global warming is on the rise, along with temperatures and surprising weather changes, according to a new university poll.
The survey by the University of Michigan and Muhlenberg College
says 62 percent of those asked last December think the Earth is getting
warmer. That's up from 55 percent in the spring of that year and 58
percent in December 2010. It is the highest proportion in two years.
Nearly half the people who say they believe in global warming
base that on personal observations of the weather. Climate researchers
say that's reaching the correct conclusion for reasons that aren't quite
right.
When asked an
open-ended question about why they thought the Earth was warming,
one-quarter of those surveyed pointed to temperatures they experience
and another quarter cited other weather changes.
One in 7 mentioned melting glaciers and polar sea ice, and 1 in 8 noted
media coverage. Only 8 percent mentioned scientific research.
"It
seems to be driven by an increased connection that the public is making
between what they see in terms of weather conditions and climate change," said Chris Borick, the director Muhlenberg College Institute of Public Opinion.
The poll
was conducted from Dec. 4 to Dec. 21, after the U.S. experienced a
record 14 billion-dollar weather disasters in 2011, including killer
tornadoes, an unusual northeastern hurricane, a devastating southwestern
drought and floods along major rivers.
At
the same time, this poll was done before the official start of winter,
so people were not yet affected by what has been a mild season for many
regions.
Borick said that after
the previous two winters, which were quite snowy, belief in global
warming dropped dramatically. So he says the findings from a fresh poll
to be conducted in upcoming weeks may again reflect views based on the
latest weather trend.
Climate
scientists say daily local weather is not evidence of climate change.
But they also say long-term climate change is so dramatic that people
recognize and experience it.
"I'm
pleased that Americans believe in thermometers," said University of
Victoria climate scientist Andrew Weaver. "People feel confident about
what they personally experience. They mix up the difference between
weather and climate. It's not unexpected. It's human nature."
While
it is a misconception to think that every short-term extreme weather
event — like a flood or drought — is caused by climate change, a warming
world does make such events more frequent, Weaver said.
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