The document discusses global warming, climate change, and the greenhouse effect. It defines each term and explains that they are related because they affect both humans and the environment. The primary cause of global warming is carbon dioxide emissions and the expansion of the greenhouse effect. Possible consequences include more extreme weather, economic impacts, and threats to animals and plants. The document provides suggestions for fighting global warming such as using renewable energy and energy efficient appliances. It also discusses arguments against the idea that human activity is causing global warming. In conclusion, the author believes global warming is a serious issue but that humans should not receive all the blame, and that there are steps people can take to help reduce its impacts.