"Continued emissions of greenhouse gases will cause further warming and changes in all components of the climate system," the IPCC said in its 36-page summary of its 2,000-page full report. "Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions."
The IPCC said the so-called "hiatus," a slowdown in warming over the past 15 years, likely can be explained by natural variability from short-term records and don't reflect long-term trends. The 1998-2012 period frequently cited by skeptics of man-made global warming, for example, began with an especially warm year that disguises the longer-term trend, the report said.
Tomblin and Rep. Shelley Moore Capito, R-W.Va., did not respond to the Gazette-Mail's questions about the IPCC report.
Rahall did not respond to the question about whether he agrees with the IPCC's conclusions about global warming and its causes.
Instead, his office issued a statement in which Rahall said he has "long advocated increased investments in fossil fuel energy research and development, such as carbon capture and sequestration.
"These are technologies that would create good manufacturing jobs here at home and could be exported to the rest of the world to truly address the rise in global emissions," Rahall said.
As with previous IPCC reports, this first phase of the group's fifth assessment focuses on the physical science of climate change. A report summarizing the latest research on mitigation strategies -- such as carbon capture systems -- is due in April 2014.
In his response to the Gazette-Mail, Manchin said, "I have always said that I believe that the world is going through a period of changing climate, and I have never denied the human impact on our climate."
However, Manchin went on to say, "Blaming America for climate change is not a solution to climate change. This is a global problem."
Andrew Beckner, a spokesman for Sen. Jay Rockefeller, D-W.Va., said the senator and his top advisers are reviewing the IPCC report.
"He's believed for a long time that the science is real, and that we need to address climate change as a matter of government policy," Beckner said. "Recognizing that, Senator Rockefeller has worked hard to create incentives for the development and deployment of clean-coal technology, and plans to do so again to meet the growing demand for cleaner energy sources while helping reduce harmful CO2 emissions."
Reach Ken Ward Jr. at kw...@wvgazette.com or 304-348-1702.