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June 16, 2026 - 4:00 PM

With a 40-pound backpack on her back, Puerto Rican educator Karla López Calderón walks several miles each week along the Trinity River Trails in Fort Worth, Texas, where she currently lives. This is how she is preparing for the month she will spend in the Arctic collaborating with scientists who are studying the impact of climate change on the North Pole.
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