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  • Title
    CEO
  • Affiliation
    Thirst
  • Age
    45

While some climate-related threats can seem abstract, water scarcity is visceral and immediate, palpable in the crunch of drought-ravaged crops or the sting of a parched throat. Guli, an Australian corporate-lawyer-turned-activist, started Thirst to educate consumers about water conservation, but this year the 45-year-old upped the ante, running 40 marathons across seven deserts on seven continents—in just seven weeks—while collecting conservation pledges online. On March 22, World Water Day, she completed her 1,048-mile journey. “Never seen a better example yet of #gobigorgohome,” tweeted a fan in Hong Kong.

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