Switchgrass ethanol or sugarcane ethanol take less energy than they produce. Oil and natural gas take less energy to get than they produce. All renewable energy sources take less energy than they produce.
Corn ethanol is a net energy loss, so why are we using it? And the *real* costs of oil, coal, natural gas, and nuclear power are far higher than what we "pay" for them with money.
On the agricultural issue -- which will we run out of first: water, soil, phosphorus, or natural gas? When will we fish all the edible species into oblivion? When will the ocean become so acidic that plankton and shellfish can't form their shells? When will the Greenland ice sheet melt enough to raise the ocean level another 2 feet? When will it be 20 feet higher?
Last edited by NeilBlanchard; 11-02-2012 at 11:20 AM..
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