President Donald Trump on Thursday revoked a landmark scientific finding that underpins U.S. regulations aimed at curbing planet-warming pollution, marking the administration's most far-reaching ...

The Trump administration on Thursday repealed the landmark 2009 legal finding that climate change poses a threat to the public — and axed climate rules for cars and trucks that were regulated under ...

A document that was first issued in 2009 would seem an unlikely candidate for making news in 2025. Yet the past few weeks have seen a steady stream of articles about an analysis first issued by the ...

Water vapor rises from one of three stacks of a power station that stand above a tree line in winter. Water vapor rises from the stacks of a coal-fired power plant in southern Ohio in December 2025.

EPA has chucked the long-standing finding that greenhouse gas emissions drive climate change, drawing promises of lawsuits from environmentalists and Democrats. President Donald Trump has undone the ...

On 12 February, US president Donald Trump revoked the “endangerment finding”, the bedrock of federal climate policy. The 2009 finding concluded that six key greenhouse gases, including carbon dioxide ...

The greenhouse gases emitted from sources like cars, trucks and power plants, major contributors to climate change, will no longer be regulated by the federal government, following an announcement ...

Nineteen years ago, toward the end of the George W. Bush Administration, the United States Supreme Court agreed to hear a case prompted by government inaction on climate change. The plaintiffs in the ...

On Tuesday, EPA proposed to repeal its 2009 Endangerment Finding (Repeal Proposal). That’s a big deal, with expansive implications. The 2009 Endangerment Finding determined six greenhouse gases (GHG) ...

§CQ.1 THE FIRST GREAT ADVANCE in algebra after the Middle Ages was the general solution of the cubic equation, immediately followed by a solution for the quartic. I tell the full story in the next ...