Earth Matters

Alexandra Cousteau wants you to run for clean water awareness

MNN week in review 10/17/2009

Australian dust storms

The 15 most toxic places to live

NASA photos: The Hubble is back

10 remarkable animals that have saved lives

10 bugs that will make you squirm

NASA photos: Cities at night

Animals chill out at the zoo

Eco-photos of the week: June 14-20

7 places climate change could spark war

7 major threats to our planet's oceans

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