1. Go to the woods. Bring a cone. 2. Put the cone in a pot - so that most of it stands out. 3. Pour it every day with a small amount of water, as excess water makes the cones rot. 4. After some time, a tiny tree will appear. 5. Congratulations - they just started oxygen production and you have a piece of forest in your own home. You're doing something for nature, and you'll see what nature does for you. Photo and project from Linda A Hughes