It's a terrible problem - or it's really not as bad as people say. There will be sudden big changes - or slower changes that we can learn to live with. It means the end for many animals, people, even whole islands - but will this happen soon, or hundreds of years from now? What is the true story about climate change? Why is it happening, and what can we do about it? If we learn about the past, then perhaps there will be time to make changes for the future. ..