And don't have kids. If no one had any children for the next 75 years all the planet's man-made problems would be solved. One human being has a vastly greater carbon footprint than one motorcycle. So every time you're thinking about having another child, don't. Buy a motorcycle instead and save the planet. I've got no kids but three bikes. Not only can I only ride one at once as @comfysofa rightly points out, but only one of them works. Naturally therefore the logical thing to do is buy a fourth, which is in hand. I'm doing my bit, what about the rest of you?
