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5 cool initiatives that are slashing food waste

Stanford study measures health benefits of nature walks

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Why hydrogen fuel cell cars are taking off

13-year-old conservation photographer is changing minds, one animal photo at a time

Mixing things up with a new gender-neutral title

Solar Impulse soars to new world records

OAS1S offers the finest in treehouse living without actually living in a tree

Oodles of wildflowers paint the subalpine slopes of the Olympic mountain range

Girl fights (and wins!) gender equality battle with local library

Mirrors in the forest reflect trees' stories

​Peas in guacamole? That's comical