Officials with the Yukon government say dozens of dead fish found earlier this week in a creek near Victoria Gold's Eagle mine were likely killed by a discharge of contaminated water from the mine site.

Litter along the stretch of the Glenn Highway from Eagle River to Wasilla is significantly less noticeable.

Environmentalists say the latest flooding may have sent radioactive substances into the river, potentially affecting hundreds of thousands of people living near the banks of the Tobol downstream. State nuclear agency Rosatom, whose subsidiary operates the mines at the Dobrovolnoye uranium deposit, denied that its mining facilities were impacted by the flood.

Floodwaters in Tomsk region threatens to submerge the river banks in Seversk where highly radioactive liquid waste from the Soviet Union's nuclear weapons program for decades were injected into two unprotected underground reservoirs.

The isotope measured in air in Tromsø for now is unknown. The isotope comes from a nuclear reactor, and is used in medial diagnostic.

A fire destroyed a Peter Pan Seafoods facility in Sand Point, Alaska, causing a pervasive smell of burning plastic from fishing gear stored on-site.

Eielson Air Force Base's EOD team safely detonated a historic TNT cache from WWII-era Alaska Highway construction discovered near Tok.

A spill from a pipeline in the Gulf of Mexico has released over 1 million gallons of oil, threatening local wildlife and prompting containment efforts.