Pick-A-Side - Which Celebrity Does More Harm To The Environment?

• How bad is the air quality in Minnesota?

  

• More money needed to update, repair Michigan's riverway dams, report says

  

• Hundreds of people celebrate Earth Day at annual Mount Lebanon celebration

  

• Wolf population at Isle Royale National Park highest since the '70s

  

• Air regulators fine Valero Benicia refinery $3.25 million for multiple air quality violations

  

• Georgia drought strains farmers, mobile markets as produce prices rise

  

• Tense cross-exam, emotional testimony and rare jailhouse witness takes the stand in Tanner Horner trial

  

• Extinct butterfly at San Francisco Presidio being replaced with close relative