Nathan Rott

Medical examiners are now screening for possible coronavirus connections in late January. Emerging evidence suggests it spread far earlier and more widely than initially believed.

Health officials are urging Americans to cover their faces to try and slow the coronavirus outbreak. Given shortages and stay-at-home orders, people are getting creative.

If a major hurricane, flood or wildfire happens during the pandemic, evacuation shelters could be dangerous and cross-state aid impossible. So disaster response experts are planning new strategies.

The Trump administration is replacing Obama-era fuel economy standards with weaker ones that will allow for more air pollution. Groups are already lining up to challenge the new rule.

The Trump administration is replacing Obama-era fuel economy standards with weaker ones that will allow for more air pollution. Groups are already lining up to challenge the new rule.

Australia's unprecedented fire season scorched sections of rare, ancient rainforests. It's another signal that climate change is intensifying and expanding wildfires globally.

More than one million residents have filed for unemployment insurance since March 13, Gov. Gavin Newsom says, as businesses shut down to slow the spread of the disease.

The order is the strongest statewide restriction in the country, but exempts essential travel to grocery stores, pharmacies and gas stations and will rely heavily on social pressure for enforcement.

After devastating fires, there are signs of regrowth across much of eastern Australia. But there's also concern that a changing climate may alter some of the country's unique landscapes forever.

Australia's devastating wildfires grabbed global attention, but far more residents were grappling with deadly, extreme heat. The country is getting hotter, and many communities are not prepared.

Australia's land and people are slowly starting to recover from the country's unprecedented bushfires. But given the devastation, it's not clear when or if communities will return to normal.

The fires that burned for months over much of eastern Australia have finally been brought under control, helped by days of intense rain. But recovery remains a long-term effort.

Los Angeles is in mourning after the sudden death of former basketball star Kobe Bryant. The five-time NBA champion and former league MVP played his entire career with the Los Angeles Lakers.

The EPA has moved to dramatically shrink which waters fall under federal protection. It's welcomed by farmers and builders, but environmentalists are sure to file a legal challenge.

Widespread bushfires are creating new calls to end the country's dependence on fossil fuels. But fossil fuel extraction is big business for Australia, the world's largest coal exporter.

The court said the nearly two dozen young people who were trying to force action by the government on climate change did not have standing to sue. The judges said climate change is a political issue.

The Australian bushfires are emitting huge amounts of climate warming carbon into the atmosphere. Normally, new vegetation that grows back would recapture it, but that may be changing.

The Australian bushfires have released an enormous amount of climate-warming carbon dioxide emissions. But emissions from wildfires have a complicated effect on the broader global climate.

A mysterious die-off of freshwater mussels has scientists scrambling to find a cause. Freshwater mussels clean water and provide habitat to countless other species.

A mysterious die-off of freshwater mussels has biologists scrambling to figure out a cause. Freshwater mussels are critical to river ecosystems and to U.S. water supplies.