Global warming is caused by greenhouse gases like carbon dioxide and methane trapping heat in the atmosphere. This is warming the planet and causing sea levels to rise, harming plants and animals. One contributor is burning fossil fuels which release pollutants into the air. Cutting down forests also exacerbates the problem since trees absorb carbon dioxide. To address global warming, people are carpooling, conserving energy, and governments are implementing acts like the Clean Air Act to reduce industrial and vehicle emissions. Protecting the environment is important for health, safety, and longevity.