Records broken all over the U.S.
Have an extraordinary hot summer? How many more can we expect? Find out everything there is to know about heat waves and stay updated on the latest climate news with the comprehensive articles, interactive features and pictures at LiveScience.com.
Another record-breaking summer likely won't have a long-term effect on people's belief in climate change.
This year may beat out 2005 as the warmest year on record, closing out a decade of unprecedented warmth.