Excerpt
SUMMARY: The U.N.'s Intergovernmental Panel on Climate Change issued its strongest warnings yet on global warming. The scientists found it is "extremely likely" -- 95 percent certain -- that human activity is the main cause of rising temperatures. Tom Clarke of Independent Television News reports on the findings.
"Climate Scientists Warn Opportunity to Prevent Dangerous Warming Is Dwindling" (Part-2) PBS Newshour 9/27/2013
Excerpt
SUMMARY: Ray Suarez talks to Michael Oppenheimer, a professor at Princeton University and member of the Intergovernmental Panel on Climate Change, about a new scientific assessment that updates the previously-held understanding of the rate and consequences of global warming.
Cautionary Note: The rate of warming is down but the global temperature is still higher than decades past.
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