Broadcast from the Stefan Edlis and Gael Neeson Foundation Talk Studio, supporting arts and communications outreach.

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Apr. 22, 2008

Once considered a fringe observance, now Earth Day is honored by governments and institutions around the globe. This year, one billion people in 174 countries will celebrate. Even Major League Baseball will celebrate Earth Day in ballparks around the U.S. We'll celebrate with our second annual Earth Day Quiz. We'll test your knowledge with environmental expert Howard Learner.