Bill Gates slashes Breakthrough Energy staff, shifting focus from influencing policy to building clean energy firms amid Trump administration realities.

The EPA is reconsidering various regulations on power plants, oil and gas facilities, and coal plants to jumpstart growth and...

The EPA is challenging the 'endangerment finding,' the most destructive regulatory action in US history. The move is both logical...

UPenn's Michael Mann and his lawyers were sanctioned for 'extraordinary' misconduct in climate defamation case.

The U.S. military has ended its two-decade focus on climate change as a national security issue, DoD confirms.