This article I get writes about living on treetops, in tree houses that are designed so beautifully and no longer a child’s play. The article also shows some pictures of newly-built tree houses in the world, they are merely like in tale. The houses don’t need any air condition. Instead, we would need some precaution against strong wind. I wonder how life on tree tops would be. Maybe need therapy for those who have height phobia. I hope there will be more and more building of such houses. I don’t know how big their contribution to earth preservation, maybe future report will be able to give more information. However this article really gives us information, also to the world. Read the article here.