Washington was the second state to launch this type of program, after California. It started out with aggressive emissions targets of 7% annual decreases, set to ease up from 2031 on.

Though Donald Trump’s return to the presidency bodes poorly for national climate policy, Washington voters trounced Initiative 2117, protecting the state’s landmark climate law aimed at ...

OLYMPIA, Wash. (AP) — Voters in Washington state on Tuesday upheld a groundbreaking law that is forcing companies to cut carbon emissions while raising billions of dollars for programs that ...