Not using a car (not even having one, if it matters), conserving, recycling, buying new stuff minding that it'll eventually end up in the landfill. That kind of

Not using a car (not even having one, if it matters), conserving, recycling, buying new stuff minding that it'll eventually end up in the landfill. That kind of thing. If you live on a farm or in the mountains, it's hard to go without a car. But living in a modern city in a first world country, there's rarely an excuse. EDIT: also, consider stopping eating so much meat, because it's not sustainable either.