green.tv

1. Global warming. (http://www.green.tv/)
2. To tell people what is happening and that we need to take action soon. It was also telling you to make your own video about what you think of global warming.
3. It is telling us what is happening and what they fear might happen if global warming continues.
4. What is the main cause of global warming? How can we help? We could use this information by warning other people.