What's green and funny and read all over?

What's green and funny and read all over? Earth Day cartoon strips

By David Colton, USA TODAY

The comics pages go "green" for Earth Day on Tuesday as 46 cartoon strips, from Blondie and Family Circus to Mutts and Zippy the Pinhead try to save the planet, one panel at a time.

"Killer is out hugging trees," Zero reports in Beetle Bailey.

http://www.usatoday.com/life/2008-04-20-ea...ic-strips_N.htm