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  • Clearing the Air: The War on Smog

    Aired August 26, 2025 | 52 min

    The story of L.A.’s devastating smog problem and the creation of the EPA and the Clean Air Act.

  • Poisoned Ground: The Tragedy at Love Canal (español)

    Aired April 22, 2024 | 112 min

    La historia de las mujeres cuyo liderazgo impulsó el proyecto de ley del Superfondo.

  • Poisoned Ground: The Tragedy at Love Canal

    Aired April 22, 2024 | 112 min

    In the late 1970s, residents of Love Canal in Niagara Falls, NY discovered their neighborhood had been built on a former chemical waste dump. Housewives activated to create a grassroots movement that galvanized the landmark Superfund Bill.

  • The Sun Queen (español)

    Aired April 4, 2023 | 53 min

    La científica Mária Telkes dedicó su carrera a aprovechar la energía del sol. Menospreciada por sus colegas, todos hombres, perseveró; diseñó con éxito la primera casa con calefacción solar en 1948 y obtuvo más de 20 patentes.

  • The Sun Queen

    Aired April 4, 2023 | 53 min

    Scientist Mária Telkes dedicated her career to harnessing the power of the sun. Though undercut and thwarted by her male colleagues, she persevered to design the first successfully solar-heated house in 1948 and held more than 20 patents.

  • The Man Who Tried To Feed The World

    Aired December 21, 2022 | 53 min

    The Man Who Tried to Feed the World recounts the story of the man who would not only solve India’s famine problem but would go on to lead a “Green Revolution” of worldwide agriculture programs, saving countless lives.

  • Sealab

    Aired February 12, 2019 | 53 min

    In 1969 off the California coast, a US Navy crane carefully lowered a massive tubular structure into the waters. It was an audacious feat of engineering — a pressurized underwater habitat, designed for an elite group of divers to spend days or even months at a stretch living and working on the ocean floor.Sealab tells the little-known story of the daring program that tested the limits of human endurance and revolutionized undersea exploration.

  • The Swamp

    Aired January 15, 2019 | 114 min

    The Swamp, explores the repeated efforts to reclaim, control and transform what was seen as a vast wasteland into an agricultural and urban paradise, and, ultimately, the drive to preserve America’s greatest wetland.

  • Into the Amazon

    Aired January 9, 2018 | 120 min

    Into the Amazon tells the remarkable story of President Theodore Roosevelt’s journey with legendary Brazilian explorer Cândido Rondon into the heart of the South American rainforest.

  • Rachel Carson

    Aired July 1, 2023 | 113 min

    An intimate portrait of the woman whose groundbreaking writings revolutionized our relationship to the natural world and launched the modern environmental movement.

  • The Big Burn

    Aired September 7, 2022 | 53 min

    In the summer of 1910, hundreds of wildfires raged across the Northern Rockies. By the time it was all over, more than three million acres had burned and at least 78 firefighters were dead. It was the largest fire in American history.

  • The Poisoner's Handbook

    Aired December 2, 2013

    The grave truth behind modern forensics was discovered in 1920s New York.