Coming Soon! Don’t ruin the surprise! Energy • Many power plants burn coal, oil, or natural gas in order to generate electricity – Pollutes the air – Uses up valuable resources! – Can also degrade environment • Renewable energy sources, such as solar power, tidal power, wind power, and geothermal power, do not have any of these drawbacks Energy • Companies are already starting to convert to renewable energy – Whole Foods – Herman Miller – Aveda • One drawback of renewable energies: cost • One criticism of wind power: protrude into landscape