By Zack Coleman.

OCTOBER 24, 2016 WASHINGTON—A debate on whether to tax carbon emissions in Washington State is laying bare divisions on the left about how far to push climate policy.

Perhaps to the surprise of many, a ballot measure to tax carbon is getting a thumbs down from many environmental groups, communities of color, and labor unions.

This opposition comes espite the initiative's appeal as a green issue. Putting a price on carbon dioxide emissions is one of the most basic strategies that’s been touted for years as a way to reduce the buildup of greenhouse gases linked to climate change. The problem: There’s sizable disagreement of what to do with the revenues generated from a carbon fee.