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, a documentary from , follows four seasoned firefighters responding to record-breaking fires in Colorado. According to the firefighters, human-caused climate change is bringing higher temperatures, drier fuels, and more diseases to the forests, which increases the possibility of wildfires and the consequent risks that the people on the front line face. Over the past two decades, career firefighter Don Whittemore has braved many of Colorado’s historic fires. As Whittemore says here, “On a day-to-day basis, we’re being surprised. And in this business, surprise is what kills people.” You can follow more about the documentary on Facebook .