Greenhouse gases, such as carbon dioxide, methane, nitrous oxide and other pollutants, collect in the atmosphere trap heat from the sun and cause the planet to warm. Global warming has adverse effects on weather patterns, human health, wildlife, sea levels and the glaciers. By using less energy, you lower the demand on power plants, which means less pollution. Couple energy conservation with increasing your reliance on renewable energy sources, and you can reduce greenhouse emissions and help stop global warming