This document discusses climate change, the greenhouse effect, and global warming. It defines these terms and explains how they are related. The primary causes of global warming are greenhouse gases emitted from the burning of fossil fuels. Consequences of unchecked global warming include rising sea levels from melting ice caps, increased extreme weather events, and mass species extinction. While global warming has impacts on the economy and environment, there are actions individuals can take to reduce their carbon footprint and mitigate the problem.