One of the best reason for legalization is for hemp cultivation which is so environmentally positive, it could save the frickin world!
An acre of hemp can produce as much paper as 4 acres of trees.
An acre of hemp would absorb 4 times the CO2 of those trees.
Hemp is the most oil rich crop which can be used for food or biofuel.
Hemp fabric is a super material that could replace many petro based synthetics for many applications.
Hemp - for fuel, food, and fiber!
Hemp Facts