Walk, bike, carpool, travel overseas by boat like Pippi Longstocking Greta T. Reduce consumerism. Reuse stuff, reycle when possible, promote mass transit locally, use a sturdy canvas totebag at the market, eat lower on the foodchain, buy stuff that lasts and take care of it like we humans had to do for 99% of our time on earth so far. Reject foods that contain palm oil. Eat local fruit instead of bananas shipped 2000 miles. Try alternatives to rice, like millet, which produces far less methane. Etc.