Ever seen an algae covered pond in a cow pasture?
You might be looking at a prime future source of fuel to power our cars and trucks.
Pond scum as a fuel?
Don't snicker.
It's been estimated that 4.5 million acres of algae farms could give us enough of a power source to replace all transportation fuels now being consumed in the United States.
Pluses: No fertile cropland required (as with producing ethanol from corn or biodiesel) in creating and cultivating algae.
In addition, algae grows just about all the time (in every season) and can be harvested every day or so.
Next time, you see pond scum, think adios Exxon!
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