Use NAFTA against the US to help the environment

Use the NAFTA against the US to reverse the greenhouse effect
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I've been reading a book called "Whose Trade Organization" by Lori Wallach and Michelle Sforza. It states the any WTO member country can challenge any other WTO member country's laws as a "barrier to free trade" and must change the law or face economic sanctions from the WTO. The US has already weakened or will alter the Clean Air Act, the Marine Mammal Protection Act, and the Endangered Species Act.
Since there is a plant that can be used to substitute for all wood pulp paper, all fossil fuels, would make most of our fibers naturally, make everything from dynamite to plastic, grow in all 50 states, and that one acre of it would replace 4.1 acres of trees, and that if you used about 6% of the US land to raise it as an energy crop- even on our marginal lands, this plant would produce all 75 quadrillion billion BTUs needed to run America each year.
If any other WTO member country would challenge the US laws regarding hemp/marijuana the US would have to weaken or alter its laws and we could really start to reverse the greenhouse effect.
Please pass this message along to anyone who could do something about this. Especially WTO countries where hemp/marijuana is legal.