In just 70 years, more than 8 billion metric tons of virgin plastics have been produced worldwide.
The regulation limits the amount of methane that oil and gas operations can release on federal land.
A tiny trade group threatens to kneecap the biggest attempt yet to get cities to reject President Trump's Paris accord withdrawal.
How clean is "clean enough" when your park is an old radioactive Superfund site?
The U.S. is missing the boat when it comes to climate change.