Idea behind Earth Day'
Source: http://www.chiff.com/home_life/holiday/earth-day.htm
The idea behind the Earth Day originated with the early 1960's hippie era. That's when Earth Day bloomed into a grass roots movement that resulted in the first official U.S. observance of Earth Day celebrated in 1970.Today, many cities extend Earth Day celebrations for an entire week to increase awareness of recycling and better energy efficient communities. Come April, major cities in the US and Canada honor Earth Day from coast to coast by hosting civic ceremonies and interactive programs to get everyone involved.