WASHINGTON (AP) - Man-made global warming is worsening and will disrupt both
the natural world and human society, warns a joint report of two of the
world’s leading scientific organizations.
The U.S. National Academy of Sciences and the Royal Society, which is the
national scientific academy of the United Kingdom, are releasing an unusual
plain language report on climate change that addressed 20 issues in a
"People do have persistent questions all about climate change,” said study
author Ben Santer of the Lawrence Livermore National Lab in California.
“This is a one-stop shop for many of those questions.”
The report, released on Thursday, addresses new issues such as the recent
slowing in the increase of world temperatures and how heat-trapping gases
are connected to extreme weather. Increases in extreme weather, melting
glaciers, rising seas and oceans getting more acidic are already happening,
the 36-page report said.
And those changes “are expected to increase greater warming and will
threaten food production, freshwater supplies, coastal infrastructure and
especially the welfare of the huge population currently living in low-lying
areas,” the report said.
The report said that while the rate of warming is slower in the 2000s than
it was in the 1990s it doesn’t negate the 150 years of observations that
show the world is warming. The report also says that more the 90 percent of
the heat trapped by greenhouse gases lately has been absorbed into the
oceans’ deep water, which for a while slows surface warming but not the
There is enough evidence on the science to warrant action, Sir Paul Nurse,
president of the Royal Society, said in a news release.
“We’ve changed the chemical composition of the atmosphere; that’s not a
belief system. We know that beyond shadow of a doubt,” Santer said in an
interview. “We ignore this at our peril.”
U.S. National Academy of Science: