The document discusses the potential of wind energy as a source of renewable energy. It explains how wind turbines work to convert wind energy into electricity. While wind provided only 1.3% of US energy in 2008, some countries like Denmark sourced 19% of their energy from wind. The document notes wind energy is clean and does not produce greenhouse gases. It acknowledges concerns over noise from turbines and reliability, but argues these are not significant issues. The conclusion is that wind energy can provide 10% of energy production while reducing emissions and reliance on fossil fuels, making it a realistic investment.