Energy cannot be created or destroyed, it can only be changed from one form to another, according scientists such as Albert Einstein. But how do we change energy's form so that it powers our homes and businesses without destroying the environment? VOA's Rebecca Ward looks at two of the most promising sustainable solutions.
The only sustainable bio-fuel is hemp. The forced crop of corn fuel is starving people all over the world and genetically modified corn causes infertility and organ failure. Hemp burns ten times hotter than oil and grows ten plusses times more crop faster than fake corn.
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