Dr. James Hansen, who is the director of NASA's Goddard Institute for Space Studies (GISS) recently talked to Climate One host Greg Dalton about whether or not there was a human fingerprint on Hurricane Sandy.
Video courtesy of YouTube and ClimateOne.
Hansen explains how extreme weather events are becoming more frequent. He also discusses how the potential for stronger hurricanes is increasing and that the hurricane season is getting longer.
Hurricane expert Dr. William Gray along with Philip Klotzbach of the Colorado State University, who write an annual summary of the Atlantic basin tropical cyclone activity each year, explain that although a storm like Hurricane Sandy is extremely rare, this type of tropical cyclone is well within natural variability and should not be attributed to increases in human-induced greenhouse gases.
Gray and Klotzbach do not believe that Hurricane Sandy and other destructive tropical cyclones of the past ten years are a direct consequence of human-induced global warming. Any impacts of climate change on hurricanes are believed to be quite small and within the noise level, according to Gray and Klotzbach.
Climate change indicators continue to show the impacts from a warming world.
Despite the rapid warming trend and resulting loss of permafrost, methane levels along Alaska's Arctic slope have been fairly stable over the past 29 years.
This year could challenge 2012 for the lowest sea ice extent minimum in the satellite record for the Arctic region.
Large portions of northern North America have experienced a greening trend over the past three decades.
New research explains why the Southern ocean surrounding Antarctica has not warmed like the rest of the world's oceans.
The warming influence of carbon dioxide has increased by 50 percent above pre-industrial levels during the past 25 years, according to NOAA.