Lifestylism is not something that will magically save the planet, there are actors bigger than us and who control more power over the planet then the entire population located on it.

Also flying less and driving less, you can only do that if the infrastructure is built for it. In Europe? Yeah duh, look at Italy it killed domestic flight thanks to trains. But the US? Forget it! Amtrak fucking sucks, and you still have to drive from your suburb to the train station because viable public transport does not, and will not exist there. It's been gutted completely by General Motors who essentialy are defacto the US government. (EDIT: The previous statement is to say that the US does not respond to the needs of it's citizens but to those of capital)

The true enemies of the world are the shareholders willing to kill it for profit, and they have names and adressess. (Side note; do not commit to adventurism)