I have said many many times in my life Bamboo and Hemp can save us all. Both can grow fast clean our air replace paper products so no need to cut down trees. In brazil talk them in to reforesting the land with profit makeing crop, if they have to scrape the earth of trees use a crop of both. Hemp is harmless also can be made into oil and fireplace logs ect. Now I have a question ? when and were will we be able to recicle batteries and ligthers. Thanks EARTH POWER TO ALL !!!