It's not optional to switch, and soon. The next 20 years will be too long. (Some niche cases can take longer to switch, of course, and that's fine.) If it's not possible we have the options of either using less or suffering massive problems in the medium-term future, which will cost a lot more.

I'm not sure what to do about this. Lobbying and investing in renewable research might not be enough.. but is there anything else really?