Jeff Tollefson

Although he faces a split Congress, the US president-elect has levers he can pull in the government to advance clean energy and curb global warming.

The new president has the opportunity to reverse four years of anti-science policies — but he has a hard road ahead as he inherits a nation divided.

Climate researchers are studying a fresh set of scenarios to model the future of the planet.

Revoking the state’s tough fuel-efficiency standards would increase US greenhouse-gas emissions. US President Donald Trump’s administration plans to revoke California’s legal authority to set its…