A campaign bankrolled by the oil industry has raised $20.5 million to defeat a carbon pollution fee on the ballot in Washington state aimed at tackling climate change.
The money raised so far by the No on 1631 campaign is sponsored by the Western States Petroleum Association.
Initiative 1631 would charge large emitters of fossil fuels a carbon pollution fee, raising an estimated $2.3 billion in the first five years to fund a wide range of programs intended to reduce carbon emissions.
Oil companies have given the bulk of money to oppose the measure.
Supporters have raised about $6 million.