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.
This year's Atlantic hurricane season is expected to be busier than usual and the 2011 summer forecast calls for some extreme weather. Heidi Cullen makes the climate connection.
In different parts of the American West, climate influences wildfires in unexpected ways.
Reactor accidents and radiation leaks aren't the only risks with nuclear energy; nuclear weapons are another problem.
Engineers who design nuclear plants can plan a worst case scenario, but this may not be enough to prevent all accidents.
Both India and China have big expansion plans for nuclear power. Here's a look at why they are expanding and what the risks are.
With what feels like an especially long winter coming to an end, Dr. Heidi Cullen gives a climate outlook for spring 2011.
Besides being a force of nature, the wind is a promising renewable energy resource. But where does wind come from, and what's its true energy potential?