Climate Central's chief climatologist Heidi Cullen testified before the Senate committee on Environment and Public Works on the facts and impacts of climate change.
Scientist Jeff Privette explains how what's seen from the sky can tell us a lot about our climate on Earth.
As Dr. Heidi Cullen reports, the suffocating heat comes on the heels of the government's release of the new climate "normals". Every 10 years, scientists from the National Oceanic and Atmospheric Administration calculate the 30-year averages for temperature and precipitation from thousands of U.S. locations.
Some in Florida who lived through Katrina now are preparing for climate change-related disasters they fear could be more damaging than a hurricane.