The U.S. plans to reduce greenhouse gas emissions dramatically in the next decade. Scientists say it's crucial that the U.S. succeed. Still, many of the positive effects won't arrive for decades.
The lawsuit comes two days after the Trump administration revoked California's ability to set its own rules for automobiles. The state's top prosecutor blasted the move as "arbitrary and capricious."
The Trump administration says only the federal government can set tailpipe emissions standards. It's the latest move in a months long standoff over efforts to weaken a key Obama-era climate rule.
Michael Honeycutt, the top toxicologist for Texas, is the latest chair of the EPA's science advisory board. But some scientists warn his views align more with industry than with scientific consensus.
Seeking to cut greenhouse gas emissions dramatically by 2030, regulators approved a plan that offers incentives for truck and bus fleets to go green and for utilities to use more renewable energy.
It's the Green Climate Fund. It was called out by President Trump last week, who said he'd cut off U.S. "billions." What does it do, exactly, and what will be the impact of the cutback?
