Discusses how Earth's climate is changing, the effect of these changes on plants and animals, and what can be done to reduce global warming.

The Earth is warming up -- Some scientists question climate change -- Greenhouse gases trap heat -- Burning fossil fuels contributes to climate change -- Farming contributes to climate change -- Deforestation changes climate -- The world's sea levels are rising -- Countries are adapting to climate change -- The Arctic is warming faster than other regions -- Climate change could cause extreme weather -- Climate change alters ecosystems -- Humans can make a difference -- Fact sheet.