This event e ; tee celebrated for the first time April 22, 1970. Earth Day is now recognized as the popular environmental event the largest in the world.
The founder of this event is U.S. Senator Gaylord Nelson . He encouraged students to develop projects of environmental awareness in their communities. Today, Earth Day is celebrated worldwide by over 500 million people in 184 countries.
Our endangered planet
On March 30, 2005, UNESCO published the first assessment of the Millennium Ecosystem, a damning report on the impact of humans on the planet. In recent years, human activities have changed ecosystems to meet growing demand for food, freshwater, timber, fiber and energy .. .
Irreversible degradation with disastrous consequences as the well-being of man is threatened by forty years.