Heat may have contributed to death of woman hiking in Arizona
Officials in Maricopa County, which includes Phoenix, say there have been 39 confirmed heat- associated deaths this year.
LEARN MORESo far this year, there have been 425 confirmed heat-associated deaths in Maricopa County, Arizona.
Millions of Americans are ready to hit the road for Thanksgiving. But some states could see storms, hail and even tornadoes over the next two days.
A storm system made its way across Southeast Florida Wednesday night, and thousands were still dealing with it Thursday morning.
New research shows fossil emissions drove a whole year of record-setting temperatures, affecting people all over the world.
40% of engagements take place between Thanksgiving and Valentine's Day, according to industry experts.
CBP officials say the Tucson area, including Nogales, is already seeing the highest number of migrants coming into the country.
25 million U.S. students use diesel-powered school buses daily, prompting debates on cleaner alternatives.