World Earth Day

Participants carry a large traditional carp-shaped wind sock called "Koinobori" at a parade demanding a stop to all nuclear power plants in Japan as part of an event for Earth Day in Tokyo April 22, 2012. Japan is set to have no nuclear power within weeks

Participants wear masks at a parade demanding a stop to all nuclear power plants in Japan as part of an event for Earth Day in Tokyo April 22, 2012. (Reuters)

Thousands of cyclists hold up their bicycles at Budapest's city park, at the end of the Critical Mass bicycle ride across the Hungarian capital, April 22, 2012.The ride was organized to commemorate World Earth Day. (Reuters)

In this photo taken on April 21, 2012, local residents line up to fetch drinking water from a lake in Rangoon, Burma. (AP Photo)

Women are seen reflected in a mirror as they get ready to take part in a performance to celebrate the Earth Day in Barcelona, Spain, April, 22, 2012. Earth Day, a day in which people across the globe hold events to celebrate the Earth's environment and sp

Taiwanese people pray at the Earth Day celebrations in Taipei, Taiwan, April 22, 2012. (AP Photo)

Volunteers collect waste materials during a commemorative event a day before Earth Day, along the coast of Freedom island in Manila April 21, 2012. Earth Day is commemorated on April 22 every year.