The strongest heat dome on the planet will soon tower 3.7 miles above Tennessee, drawing extreme heat and humidity into the central United States from the Gulf of Mexico.

Americans born between 1951 and 1980 are invisibly scarred by lead exposure that embedded the toxic metal into their bones. It reemerges later in life.

Air pollution in dozens of cities rose after U.S. embassies stopped providing readings that had previously spurred local government action, a study found.

Agency chief Lee Zeldin had planned the repeal as part a slew of proposals he called “the largest deregulatory announcement in U.S. history.”

A Washington Post analysis found that 133 million people live in counties where a quarter of nights were extremely warm.

The risks of childhood food allergies are widely discussed but they can also appear later in life.

Timothy Smith, who was hiking with two friends whose bodies were recovered, has been missing for over a week.

Michael Boren, who oversees the U.S. Forest Service, asked for more resources to contain a seven-acre blaze last month, officials said.

Nine people have contracted Vibrio vulnificus, and five have died, according to state officials. In recent years, warming waters have also pushed cases farther north.

A weekend of new blazes across Canada’s British Columbia has created new smoke that is now wafting into the United States.

Hamilton was removed from the job last year after saying the agency shouldn’t be dismantled.

A Post analysis shows that about 20 percent of the land area — covering around 7.5 million square miles — experienced moderate or greater concentrations of the soot released by wildfires at some point during July.

Arizona, California and Nevada will be required to curb their use of the water from the river by a combined 20 percent over the next two years, according to three officials.

Officials said losing out on the ability to do vital prevention work at a perilous time for the region hindered them from being as prepared as they could have been.

The rare temblor for the region may produce some aftershocks in the next couple of days.

The National Park Service replaced panels that discussed the horrors of slavery and George Washington’s ownership of enslaved people.

With the river in freefall, federal officials plan to intervene, possibly imposing large cuts to water usage in seven states. Effects would be felt beyond the West.

Hundreds of records fell as temperatures climbed to levels higher than nearly the rest of the planet. The heat wave will expand across Europe through the weekend.

The storm brought a 1-in-200-year rainfall event to a community in Louisiana. Here’s how much rain fell.