Usa Feature Package Earth Day

epa02118972 Don Chenoweth head of maintenance at Kiowa County Hospital walks through the basementthe hospital uses rain water to storeflush the toilets as well as cool the building in Greensburg , Kansas , USA , 13 April 2010 . Greensburg was destroyed by a tornado in May 2007decided to rebuild as a green town powered by renewable energy sources . Earth Day is celebrated around the world annually on 22 April to inspire awareness ofappreciation for the earth ' s environment . On Earth Day individuals as well as environmental groups take action to raise awareness ofpolitical attention to environmental issues such as pollution , global warmingclimate change , to encourage public endeavour for a clean environment . Earth Day which was founded by by U . S . Senator Gaylord Nelson as an environmental teach-in in 1970 celebrates its 40th anniversary in 2010 .  According to the official website : ' Earth Day 2010 can be a turning point to advance climate policy , energy efficiency , renewable energygreen jobs . '  EPA/LARRY W . SMITH