Vote to ban dead Christmas trees. Use home made trees or buy imitation trees and use every year. Write to your state capital. Use a tree growing there to decorate it. Have your school plant more tree, have your local government plant more trees, cities and trees go hand in hand.
More trees mean cleaner air which mean happier healthier people.
More trees mean less heat and more water. Less severe wind, less major weather changes. Make more compost. Feed trees rock dust and clean water. Use a garden filter or water transformer to clean it up.