Katharine Hayhoe never goes where she’s not invited, and when she accepts an invitation, she usually finds herself surrounded by people who vehemently disagree with her.

Hayhoe, 43, is one of the nation’s foremost atmospheric scientists. She was lead author of the second and third U.S. National Climate Assessments, she directs the Climate Science Center at Texas Tech University, and she has written more than 120 peer-reviewed publications and works with city managers, engineers and ecologists across the country to prepare for climate-change impacts.

She’s also an evangelical Christian on a mission to convince faith-based climate-change deniers that climate change is real, that it’s caused by human activity and that taking action aligns with their core values and beliefs.

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