Heat Wave

Amid the hottest year on record in the United States comes new research warning just how deadly heat waves can be.

Record heat is expected once again across the Midwest this week.

The drought wrecking havoc with agriculture has been declared a natural disaster.

After mild relief, another heat wave builds.

After mild relief, another heat wave builds.

Heat continues to break records. Some mild relief may be in store, however.

The heat wave across the U.S. has broken records nationwide.

And will it end anytime soon?

The devastating heat has already reached historic proportions.

Summer temperatures could be warmer than average across much of country this year.