2013 National Geographic Emerging Explorer, Gregg Treinish.

Gregg Treinish (pictured) is a part of National Geographic's Emerging Explorer program.

Photograph by Alexandria Bombach, National Geographic

Catching Up With NatGeo 2008 Adventurer of the Year

Gregg Treinish's organization connects adventurers with scientists.

ByPeter Gwin
June 22, 2013

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