Want climate news in your inbox? Sign up here for Climate Fwd:, our email newsletter.

WASHINGTON — This is the era of deregulation in the nation’s capital: President Trump is rolling back Obama-era climate change regulations that would have cut planet-warming pollution from smokestacks and tailpipes, and he has vowed to withdraw the United States from the Paris climate agreement, the 2015 accord under which nearly every nation pledged to limit greenhouse gas pollution.

At the state level, though, advocates and lawmakers around the country are fighting back.

In some states, questions of climate change policy are on the ballot. While advocates generally agree that national programs, rather than state and local efforts, will be required to tackle global warming, there are a handful of policies on five midterm ballots that could have an outsize impact on the nation’s greenhouse gas pollution, and the direction of national policy.

Washington: A first-in-the-nation carbon tax