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10 intriguing environmentalists

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Ali Howard

What better way to spotlight eco-threats to the salmon-rich Skeena River than by making a splash? Literally. Howard, a 33-year-old resort chef and water polo player, donned a wetsuit last summer, jumped in at the headwaters of British Columbia’s second longest river and didn’t stop swimming until she reached the Pacific Ocean. Battling rapids, frigid water and whirlpools, she and her support team completed their epic 379-mile eco-odyssey in 28 days.