We talk about it almost every day in the media, but what exactly is the Greenhouse Effect?

- What precisely are the phenomena involved?
- Who are the players in this effect?
- How to quantify and classify Greenhouse Gases (in other words: which are the most responsible)?
- What are, and above all will be, the consequences?
- Is there any controversy over this effect?

You will find some answers on the 2 pages dedicated to the Greenhouse Effect:

1) Definitions and actors of the greenhouse effect
2) Greenhouse, consequences, controversy and downloads