04/21/2014
Since Tuesday is earth day. What is the history behind earth day? One good article to answer that question is "Earth Day Facts: When It Is, How It Began, What to Do". The article is on National Geographic website. To read about the history visit http://news.nationalgeographic.com/news/2009/04/090421-earth-day-facts/?rptregcta=reg_free_np&rptregcampaign=20131016_rw_membership_r1p_us_se_w -modal
From not-so-humble beginnings in 1970, when 20 million participated, Earth Day has grown into a global tradition. Find out when it is, how it started, how it's evolved, and what you can do.