Earth Day is celebrated yearly, the day after the spring equinox. It is the biggest environmental manifestation of the planet, promoted by the United Nations to encourage the protection of the Earth. The idea of creating an “Earth Day” was discussed for the first time in 1962, and finally took form in 1969, following the environmental disaster caused by the seepage of oil from a well in the open sea of Santa Barbara, California. In the last editions, the Day involved up to a billion people in 192 countries in the world, and became a planetary, educational and informative event on themes of pollution, desertification, destruction of the ecosystems, and the depletion of nonrenewable resources. But also included is individual responsibility towards sustainable consumption, as inspired by the idea of the “Common home” of mankind.