The liberals should take a page out of the Venezuelan Hunger Bonds movement and identify companies that fund climate change denial. A climate bond movement to target and blacklist company shares/bonds or other offerings would get the message across.
I'm wondering if it wouldn't be possible to build an app that recognizes brands and tells you if they are connected to the koch brothers... Like you can whip out your phone and scan a barcode at the store. It tells you climate relevant info about the product.
Edit: apparently there are several apps like this: https://www.forbes.com/sites/paularmstrongtech/2017/01/11/th...