Last month the U.S. Senate held a hearing in regards to the proposed Keystone XL Pipeline.
Dr. James Hansen, who is the former director of NASA's Goddard Institute for Space Studies (GISS) was one of the members of the expert panel. Hansen is currently an adjunct professor in the Department of Earth and Environmental Sciences at Columbia University.
During the hearing, Hansen made his case against the proposed pipeline and then encountered some questions from Senator Ron Johnson (R) of Wisconsin. Johnson serves on the committees on the Budget, Commerce, Science and Transportation, Foreign Relations, Homeland Security and Governmental Affairs and Small Business and Entrepreneurship.
Below is a clip of the exchange courtesy C-SPAN. In the exchange Johnson questions Hansen about climate change and the recent slow-down in warming.
Here is a link to other clips from the Keystone XL hearing, courtesy of C-SPAN
Heat generated by burning a fossil fuel is surpassed within a few months by the warming caused by the release of its carbon dioxide into the atmosphere.
How are human activities influencing the global climate?
What type of effort would it take to limit the temperature increase to 1.5 degrees Celsius or less by the end of this century?
Warming temperatures having an impact on the frequency and intensity of tropical cyclones.
How did April rank globally for temperature?
Most recent global sea ice highlights in terms of extent and thickness.