Tagging tuna in the deep ocean

Filmed April 2010 at Mission Blue Voyage.

Tuna are ocean athletes — fast, far-ranging predators whose habits we're just beginning to understand. Marine biologist Barbara Block fits tuna with tracking tags (complete with transponders) that record unprecedented amounts of data about these gorgeous, threatened fish and the ocean habitats they move through.

Commit | Catie Webster | TEDxBoulder

Catie Webster talks about fly fishing, commitment and conservation in this Boulder Tedx Talk.

How the market can keep streams flowing

With streams and rivers drying up because of over-usage, Rob Harmon has implemented an ingenious market mechanism to bring back the water. Farmers and beer companies find their fates intertwined in the intriguing century-old tale of Prickly Pear Creek.