No, they are not. "The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive." https://twitter.com/realDonaldTrump/status/26589529219124838...
This is what the leader of right wing thinks about global warming.
Unless they said it but messed up more, but that doesn’t seem to be the case.
Which of those wings do you think has been bad on the environment?
Personally I’d say it’s the “pro-economy” neoliberal wing more than the left. Say what you want about how effective or practical the left has been, but generally they’re not the ones stripping regulations on hazmat trains or signing off on drilling in nature preserves or building pipelines across crucial aquifers.