1) The document discusses several environmental issues including desertification, global warming, the ozone hole, and pollution. 2) Desertification is caused by climate change and human activities like overexploitation of land for agriculture or industry. 3) Global warming will increase as carbon dioxide levels in the atmosphere rise, leading to higher temperatures worldwide with severe consequences. The Kyoto Protocol aims to limit these effects but some countries have not signed on.

1. As the problem can be resolved with the help of the mythical Hercules (and of some political!) The climatic change

7. Realized by: Giulia and Monica