New research highlights companies’ “aligned and coordinated” use of Twitter to deny climate change and delay solutions.

President Trump issued a broad slew of energy policies and efforts to roll back environmental protections on his first day in office. The moves excited supporters and the fossil fuel industry.

Newly inaugurated President Donald Trump plans executive action that could deepen climate change's impact on Arizona.

On Monday, President Donald Trump opened his second term with an inaugural address declaring that America has a “national energy emergency.” Vowing to tap into the country’s vast oil and gas reserves, Trump dismisses the overwhelming majority of climate scientists who say burning fossil fuels releases greenhouse gases that overheat the planet.

President Donald Trump launched a sweeping overhaul of US energy policy hours after taking office Monday, putting the weight of the federal government behind fossil-fuel production and pulling back from the fight against climate change.

President-elect Trump is gearing up to support the oil and gas industry by directing agencies to unwind climate rules

By declaring a national emergency on energy, Trump will make it a priority of his administration to increase the domestic production of oil and other forms of fossil-fuel energy, officials said. It comes as U.S. crude oil production has already hit an all-time high over the past year.

The president said he’d declare an energy emergency, increase drilling and end support for electric cars. His pivot to oil and gas follows the hottest year in recorded history.

The court fight brought in Hawaii state court is similar to others filed against the nation's largest energy companies by state and local governments in their courts.

The United States will be one of only four countries outside the Paris Agreement, which is designed to reduce global greenhouse gas emissions.

Yes, China is the world's largest greenhouse gas polluter, but that doesn't mean Ireland shouldn't try to change

President Donald Trump on Monday announced the United States' withdrawal from the Paris climate accord for a second time, a defiant rejection of global efforts to combat planetary warming as catastrophic weather events intensify worldwide.