The New York Times on the tension between weather forecasters and climate modelers.
The split between climate scientists and meteorologists is gaining attention in political and academic circles because polls show that public skepticism about global warming is increasing, and weather forecasters — especially those on television — dominate communications channels to the public. A study released this year by researchers at Yale and George Mason found that 56 percent of Americans trusted weathercasters to tell them about global warming far more than they trusted other news media or public figures like former Vice President Al Gore or Sarah Palin, the former vice-presidential candidate.
The George Mason-Texas survey found that about half of the weathercasters said they had discussed global warming on their broadcasts during chats with anchors, and nearly 90 percent said they had talked about climate change at live appearances at Kiwanis Club-type events.
Several well-known forecasters — including John Coleman in San Diego and Anthony Watts, a retired Chico, Calif., weatherman who now has a popular blog — have been vociferous in their critiques of global warming.
The dissent has been heightened by recent challenges to climate science, including the discovery of errors in the 2007 report by the United Nations’ Intergovernmental Panel on Climate Change and the unauthorized release of e-mail messages from a British climate research center last fall that skeptics say show that climate scientists had tried to suppress data.
“In a sense the question is who owns the atmosphere: the people who predict it every day or the people who predict it for the next 50 years?” said Bob Henson, a science writer for the University Corporation for Atmospheric Research, who trained as a meteorologist and has followed the divide between the two groups.
Mr. Henson added, “And the level of tension has really spiked in recent months.”
The reasons behind the divergence in views are complex. The American Meteorological Society, which confers its coveted seal of approval on qualified weather forecasters, has affirmed the conclusion of the United Nations’ climate panel that warming is occurring and that human activities are very likely the cause. In a statement sent to Congress in 2009, the meteorological society warned that the buildup of heat-trapping gases like carbon dioxide in the atmosphere would lead to “major negative consequences.”
Yet, climate scientists use very different scientific methods from the meteorologists. Heidi Cullen, a climatologist who straddled the two worlds when she worked at the Weather Channel, noted that meteorologists used models that were intensely sensitive to small changes in the atmosphere but had little accuracy more than seven days out. Dr. Cullen said meteorologists are often dubious about the work of climate scientists, who use complex models to estimate the effects of climate trends decades in the future.