Climate change quiz

1. Does the atmosphere contain carbon dioxide?
2. Does atmospheric carbon dioxide raise the average global temperature?
3. Will this influence be enhanced by the addition of more carbon dioxide?
4. Have human activities led to a net emission of carbon dioxide?

The correct answer to all four questions is ???? .

Make your own conclusions.

Published in: on June 1, 2007 at 10:10 am  Leave a Comment