1. Legalizing Hemp
... and press enough hemp seed to power many millions of cars. Biomass fuels are clean and virtually free from metals and sulfur, so they do not cause nearly as much air pollution as fossil fuels. Even more importantly, burning biomass fuels does not increase the total amount of carbon dioxide in the Earth's atmosphere. When petroleum products are burned, carbon that ... has been stored underground for millions of years is added to the air. This may contribute to global warming through the "Greenhouse Effect", (a popular theory that says that certain gases will act like a wool blanket over ...
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- Grade Level: High School