Hemp as a Biofuel??
Hemp is the most efficient plant for biofuels. It grows everywhere on Earth except Antarctica and requires no pesticides, herbicides nor chemical fertilizers.
In the US, we've started several biofuels/ethanol conversion plants using corn and soybeans. That's a step in the right direction, but those crops require chemicals to grow on the scale needed. We're finding those chemicals in our ground water and soil, and that's a definite threat. Hemp would eliminate those chemicals and leave the soybeans and corn for food crops.
Of course when you extract the oil from the Hemp seed, the cake that's left over is a highly nutritious substance for either animal or human. It's been used for several centuries as such.
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