All those homes could have been built by using Hemp products. Not one tree need to have been cut down.

Why dont you go back to school and learn something else other then cutting down trees. 

http://www.finehomebuilding.com/2016/05/04/building-a-house-of-hemp

http://www.nytimes.com/2015/07/07/nyregion/cannabis-construction-entrepreneurs-use-hemp-in-home-building.html?_r=0