Jeff Brady

More efficient lightbulbs are cheaper and longer-lasting than ever. But while that's good for consumers, it can be tough for an industry that's also facing shifting regulations.

Bob Murray rose from coal miner to executive and became an influential industry voice. Despite his role in crafting the Trump administration's pro-coal policies, his own company is bankrupt.

Bob Murray, the owner of Murray Energy, pushed the Trump administration to roll back numerous coal regulations. But he says the industry needs even more help from the government.

As the country's 14th secretary of energy, Perry leads an agency he once vowed to eliminate. He has emerged as a central figure in the impeachment inquiry of Trump.

The House impeachment inquiry is shedding light on business ties between Trump administration officials — including Energy Secretary Rick Perry — and Ukraine's energy industry.

Pennsylvania Republican Brian Fitzpatrick is an ex-FBI agent who investigated corruption in Ukraine. Now left-leaning voters in his swing district want him to help in investigate the president.

A Ukrainian-American businessman has helped Rudy Giuliani promote an unsubstantiated theory of corruption in Ukraine by Joe Biden, ahead of next year's presidential election.

The Trump administration threatens to cut federal highway dollars for California over air pollution.

Swedish teenager Greta Thunberg joins other school strike activists in New York and around the world ahead of the UN Climate Action Summit.

Swedish activist Greta Thunberg, 16, is calling on young people to skip school Friday and hold rallies to demand more action against climate change.

Hurricane Dorian left much of North Carolina with only minor damage. But residents of one neighborhood in the town of Carolina Shores are cleaning up after a tornado left some homes uninhabitable.

Up to 15 inches of rain is forecast in North Carolina as Hurricane Dorian moves up the East Coast. In Wilmington, authorities say storm surge and flooding is the big concern.

Hong Kong authorities arrested activists in a coordinated sweep ahead of a what had been a planned anti-government march. Also, the EPA aims to roll back limits on methane and an update on Brexit.

The Trump administration wants to weaken regulation of methane emissions, a powerful greenhouse gas. The move faces opposition from environmentalists and some in the oil and gas industry.

The 16-year-old Swedish activist chose sailing over flying to attend a United Nations climate summit. She's inspired young people around the world to protest for more climate action.

To address climate change, scientists say countries will need to capture and contain mass amounts of carbon dioxide. It's a technical and financial challenge that more companies are taking on.

A 16-year-old Swedish activist has sailed the Atlantic to attend a U.N. climate summit. She's become a high-profile presence in climate diplomacy, and inspired teens to push for action.

The Sunrise Movement is holding rallies and registering voters, aiming to boost turnout among young voters. For the first time, polls show climate change is a top priority for the party's base.

Six officers were shot in an incident in North Philadelphia that started with a narcotics unit serving a warrant and went on for hours. The officers have been released from the hospital.

Climate change has emerged as a key issue among the Democratic presidential candidates, several of whom have detailed plans.