Alaska officials are still trying to sort out the scope of a problem caused by trenching for fiber optic cables which could threaten the only haul road to the oil fields at Prudhoe Bay, as well as dozens of streams along the way.
The Pacific Salmon Treaty is the document between the United States and Canada that allocates the king salmon harvest across borders.
Alaska State Forestry firefighters are working to contain a fast-growing wildfire near Healy that was ignited by two smoldering fires burning in coal deposits.
A tiny clue found in ancient sediment has unlocked big secrets about Greenland's past and future climate.
About 10,000 years ago, a farmer in Asia noticed that some of his grapes had naturally fermented and liquid was forming around them. He took a taste and found that it was good. We have been drinking wine ever since.
In Peru's Madre de Dios region, illegal mining is everywhere.
The Kilauea eruption has wiped out rare sites and whole ecosystems. As the island mourns a tragedy, it also accepts the brutal cycle of nature.
Air pollution irritates kids' respiratory systems, but it can also prompt immune systems to start attacking healthy cells.