Engineers who design nuclear plants can plan a worst case scenario, but this may not be enough to prevent all accidents.
With what feels like an especially long winter coming to an end, Dr. Heidi Cullen gives a climate outlook for spring 2011.
What weÃ¢Â€Â™ve known as Ã¢Â€ÂœnormalsÃ¢Â€Â for our climate during the past decade will very likely change soon.
The currents around the equator in the Pacific Ocean are cooler than average this year, which means we are experiencing the phenomenon known as La Niña. This can bring good weather conditions, or poor ones, depending on where you live and your point of view. Dr. Heidi Cullen explains.
Some in Florida who lived through Katrina now are preparing for climate change-related disasters they fear could be more damaging than a hurricane.
NOAA's annual climate report shows we live in a warming world.
Dr. Jack Beven explains his work at the National Hurricane Center, where he helps issue hurricane warnings that keep people out of harms way.
Why do we get less than 2% of our energy from wind?