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The Obama Administration has removed the Arctic Ocean from any new off shore oil and gas leasing for the next 5 years. Environmentalists wanted the move due to concerns over climate change.

Rising temperatures and thawing permafrost threaten tiny Newtok. Its residents want President Obama to declare an official disaster, to unlock the millions it needs to move the community.

Climate change is opening up the Arctic to luxury cruises, including an Alaska-to-New York voyage. The vacation destination takes advantage of warming oceans but raises safety and ethical concerns.

Secretary of State Rex Tillerson got an earful from other countries over U.S. climate policy. At a meeting of the Arctic Council, they pressured him not to pull out of the Paris climate agreement.

The hardy tamarisk, which arrived from Asia, is crowding out native plants in many Western states. It chokes small streams and rivers and sucks up scarce water. And it's hard to get rid of it.

The Trump administration's transition officials ordered the Environmental Protection Agency to cut its presence at the event. The team cited travel costs in explaining the abrupt move.

Throughout November, hundreds of people are lining up to peer through the telescope at Lowell Observatory in northern Arizona. What they'll see: Mars in close opposition with the Earth. This is the nearest the red planet has been to Earth since 2003. If you miss it this month, you'll have to wait until 2018 for such an incredible view. Sadie Babits has this postcard from the observatory.

Melting permafrost and major storms are eating away at the coastal Alaskan village of Newtok. Residents are desperate to move, but the U.S. has no climate change relocation plan that could help them.

Alaska may overhaul the way it spends its oil wealth. While the state has a lot of oil, the price of oil has dropped so much that the state now has a $3.5 billion deficit — two-thirds of its budget.

Last year, big fleets in the Bering Sea caught more halibut, by accident, than local fishermen caught on purpose. The big ships throw out that halibut; the local fishermen make their living from it.