Evan Bush

Since the Eaton Fire, Altadena residents have found hazardous substances like lead and asbestos on their properties, fueling fear, conflict, and a patchwork of emerging research.

Five cases have been reported this month, long after the typical season for the mushrooms behind the illnesses, leaving experts surprised. Of the 47 known cases, four people have died.

An EPA study found most properties have lead levels below what federal regulations say is dangerous. Some scientists worry that's not the whole picture.

Many of the dead whales have appeared thin and weak. Researchers think there's a problem with their food supply in the Arctic — a result of melting ice.

The Trump administration is attempting to roll back reforms to the EPA program designed to prevent chemical disasters — and to shut down the safety board that investigates them.

The slow hurricane forecast for the Atlantic is linked to an expected El Niño pattern, but that should make for a very active season in the Pacific.

Wildlife officials in Colorado and Oregon are allowing anglers to take as many fish as they want from some reservoirs expected to be hit hard by drought.

The U.S. will run much the same playbook as it did starting in the 1950s: mass-produce sterile male screwworms and release them into the wild to stop the pests from reproducing.

The crew is expected to launch to Earth orbit next year to conduct demonstrations with one or both of the lunar landers that SpaceX and Blue Origin are building.

Among the effects predicted: drought in the Pacific Northwest, flooding risk in the South, more Pacific hurricanes, high ocean heat and visits from unusual fish and sharks.