Reid Frazier

A year after the fiery train derailment in East Palestine, Ohio, experts and others are still concerned about toxins and their aftereffects.

The Biden administration recently announced $7 billion for regional hubs meant to develop and increase the use of hydrogen. Pennsylvania has ended up with two of the hubs.

Around the country, health care workers continue to grapple with their industry's massive carbon footprint. In Pittsburgh, doctors formed Clinicians for Climate Action to address the problem.

Federal investigators held a multi-day hearing on the causes of the East Palestine, Ohio, train derailment and fire that spewed toxic chemicals into the air.

Norfolk Southern Railway has removed a small mountain of soil laced with toxins since the February train derailment in East Palestine. What happens to the waste that hazmat teams collect?

In East Palestine, Ohio, federal environmental regulators have taken charge of the cleanup from the train derailment and chemical burn, and ordered Norfolk Southern to foot the bill.

A plan for Western countries to help fund South Africa's transition from coal was difficult to reach, but parties announced an agreement Friday. It could be a model for other countries.

Officials from around the world are meeting in Pittsburgh to discuss global climate change efforts. The event comes as leaders prepare to meet this fall for the next U.N. climate summit in Egypt.

Oil giant Shell will soon open a chemical plant near Pittsburgh that will turn gas from fracking into plastic. The project is creating hundreds of jobs but some residents worry about the air quality

The federal government plans to build several hydrogen hubs around the country. The goal is to find a cleaner replacement for fossil fuels. But there are challenges in how hydrogen is produced.

Across the country, some 2 million abandoned oil and gas wells are leaking methane, a potent climate-warming gas. Now billions of dollars from the infrastructure law will be spent to cap them.

President Biden has repeatedly promised the shift to clean energy will create "good-paying union jobs." But the wind and solar industries generally pay less, are not unionized, and need fewer people.

For a decade, growing American gas production has fueled a petrochemical boom. There are big plans for more plants in Appalachia, but the pandemic — and an oversupply of plastics — may crush them.

Coal use has plummeted in part because it's more expensive than natural gas or renewable energy. Mines are shutting down, and some power plants may run out of places to stockpile coal.

Climate change has become a key issue in the Democratic primaries, but voters are split in the swing state of Pennsylvania — where the fracking boom has boosted the economy.

America is now the world's biggest exporter of ethane, a part of natural gas that's a building block for making plastics. That's helping fuel the fast-growing global plastics industry.

America's natural gas boom has also made it the world's biggest exporter of ethane. It's a building block for plastics, and U.S. gas is helping fuel the global plastics industry.

The Environmental Protection Agency would give coal plants more time to close unlined coal ash ponds, and ease rules on wastewater. Opponents say that prolongs the risk of toxic spills.

The settlement is now public because of computer error. Pennsylvania families, whose ordeal was detailed in a Pulitzer-winning book, claimed air, groundwater and soil contamination.

The air has been getting dirtier around the country's largest coke fuel plant near Pittsburgh. The push to clean up pollution is complicated when residents depend on the industry that's causing it.