Leila Madrone uses her skills in automation and robotics to make solar even better.
You probably aren't going to tango with a tiger shark anytime soon -- but David Shiffman does it on a weekly basis, for science.
Melina Laboucan-Massimo is leading the fight against tar-sands development in Canada -- and for the rights of indigenous women.
Andrew and Sophie never planned to be commercial fishermen -- but they tried it for a summer. Here's what they learned.
Lisa Emelia Svensson wants to figure out the value of the seas.
Asha de Vos studies how the blue whales of Sri Lanka, threatened by a booming shipping industry, help feed an ecosystem from the bottom up.
Paul Dobbins' farm needs no pesticides, fertilizer, land, or water — we just have to learn to love seaweed.
Mike Coots lost his leg in a shark attack. Then he joined the group Shark Attack Survivors for Shark Conservation, and started fighting to save SHARKS from US.
Kramer Wimberley knows what it's like to feel unwelcome in the water. As a dive instructor and ocean-lover, he tries to make sure no one else does.