One acre of cannabis hemp, in annual rotation over a twenty year period would produce as much pulp for paper as 4.1 acres of trees being cut down over the same 20 year period. Hemp is a very renewable plant. It only takes one year for a hemp plant to reach full growth and to be harvested. The infotank website also maintains that hemp, unlike oil, is a renewable fuel source. Hemp plants can produce 10 times more methanol than corn which is the second best living fuel source.
Hemp fuel is good for the environment.
It burns clean and free of sulphur, unlike oil which produces sulfur which in turn, causes acid rain. Oil on the other hand, releases only carbon dioxide which has the result of increasing global warming and may be a factor in the greenhouse effect. The DEA has published information about hemp production in response to queries about hemp cultivation. Although up until the Civil War hemp cultivation flourished in several states, the lack of slaves after the war significantly affected cultivation. Since hemp is a labor-intensive crop and there was no cheap labor available anymore, farmers began to stop cultivating it because it became less profitable than other farming ventures.