Assignment Earth

Assignment Earth Video

  • Gopher Tortoises Play
    Gopher Tortoises Assignment Earth - Thu Dec 6, 1:52 PM ET

    Conservationists try to save an ancient species from declining habitat and growing threats from predators.

  • Lake Tahoe Warming Play
    Lake Tahoe Warming Assignment Earth - Mon Nov 26, 12:49 PM ET

    Scientists warn that California's famous crystal-clear lake is seriously threatened by global warming.

  • Costa Rican Ecotourism Play
    Costa Rican Ecotourism Assignment Earth - Wed Nov 14, 7:25 AM ET

    Successful ecotourism on the Osa peninsula raises new challenges.

  • Bald Eagles Are Back Play
    Bald Eagles Are Back Assignment Earth - Tue Nov 6, 7:25 AM ET

    Under the protection of the Endangered Species Act, the recovery of America's national symbol is now hailed as a major success story.

  • New Threats to Spotted Owls Play
    New Threats to Spotted Owls Assignment Earth - Wed Oct 31, 12:28 PM ET

    In the old-growth forests of the Pacific Northwest, northern spotted owls face an aggressive competitor and new plans to remove protection for their habitat.

  • Counting Gray Bats Play
    Counting Gray Bats Assignment Earth - Thu Oct 25, 12:03 PM ET

    Biologists use new techniques to monitor the recovery of gray bat populations in protected cave habitats.

  • National Petroleum Reserve - Alaska Play
    National Petroleum Reserve - Alaska Assignment Earth - Tue Oct 16, 1:10 PM ET

    In a vast region in arctic Alaska, wildlife conservationists and the U.S. government square off for a major battle over proposed oil and gas leasing.

  • Asian Longhorned Beetle Play
    Asian Longhorned Beetle Assignment Earth - Tue Oct 9, 1:04 PM ET

    New York City is on the front line of a desperate war against a sneaky invader.

  • Hellbenders Play
    Hellbenders Assignment Earth - Tue Oct 2, 4:24 PM ET

    Giant salamanders in the Ozark mountains are disappearing, and scientists are trying to find the cause.

  • Mt. Shasta Play
    Mt. Shasta Assignment Earth - Thu Sep 27, 12:16 PM ET

    In northern California, global warming is apparently causing glaciers to grow, not shrink, on Mount Shasta.

  • Cape Wind Play
    Cape Wind Assignment Earth - Tue Sep 18, 10:54 AM ET

    An ambitious plan for a giant wind farm project off the the coast of Cape Cod in Massachusetts has divided environmentalists and pitted residents against each other.

  • Eastern Prairie Grasslands Play
    Eastern Prairie Grasslands Assignment Earth - Thu Sep 6, 11:21 AM ET

    In the southeastern U.S., land managers are using fire to restore ancient prairie habitat.

  • Venus Flytrap Play
    Venus Flytrap Assignment Earth - Tue Aug 28, 12:37 PM ET

    With poachers threatening the survival of this insect-eating plant, marking them with dye helps to prosecute thieves.

  • Flying Conservationists Play
    Flying Conservationists Assignment Earth - Wed Aug 22, 1:30 PM ET

    Volunteer pilots offer aerial views of environmental damage.

  • Tidal Power Play
    Tidal Power Assignment Earth - Wed Aug 15, 11:28 AM ET

    New York City is pioneering the use of tidal flows to generate electric power.

  • Dead Zone Play
    Dead Zone Assignment Earth - Mon Aug 6, 4:57 PM ET

    Flowing down the Mississippi, fertilizer runoff has a devastating effect in the Gulf of Mexico, creating a vast area devoid of life.

  • Water Wars Play
    Water Wars Assignment Earth - Tue Jul 31, 12:00 PM ET

    In America's Southeast, growing population pressures are forcing states to compete for limited water supplies.

  • Copper Basin Cleanup Play
    Copper Basin Cleanup Assignment Earth - Tue Jul 24, 11:42 AM ET

    After 150 years of mining and logging left a huge environmental disaster zone in southeastern Tennessee, massive cleanup efforts are showing positive results.

  • Sudan Wildlife Play
    Sudan Wildlife Assignment Earth - Wed Jul 18, 5:58 PM ET

    Following years of civil war in southern Sudan, wildlife herds are thriving but facing new peacetime perils.

Previous    1  2  3  4  5