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 magnitude 7.2 earthquake, the largest in 25 years, struck off the coast of Hualien, Taiwan, causing nine deaths, hundreds of injuries, and significant structural damage.

A polar bear was drawn to the Hope Dog Sled Race in Chukotka, Russia, an unusual event for the area. It is the third recent visit of a bear to the village. In size and build, the polar predator is similar to the same bear thatdisturbedlocal residents on the night of March 28.

Cows at two Texas dairy farms have contracted bird flu, marking the first known instance of the disease in livestock, amidst recovery from devastating wildfires.

Peak bloom of the cherry blossoms in Washington, DC, happened on March 17, ahead of the National Cherry Blossom Festival.

The past few decades have been the most significant for the damage the mice have caused, said Dr. Anton Wolfaardt, the Mouse-Free Marion project manager. He said their numbers have increased hugely, mainly due to rising temperatures from climate change, which has turned a cold, windswept island into a warmer, drier, more hospitable home.

Early March's relatively mild start will get wetter in southern areas on Thursday, when a significant amount of rainfall is expected — with up to a full centimetre expected in western areas.

A Houston man was injured by a moose near his home, an unusual event linked to increased moose aggression due to harsh winter conditions.

Sawfish, and about 30 other species of fish, are turning up sick and dying in the Lower Keys as questions mount over what's causing it.

A gray whale, presumed extinct in the Atlantic for over 200 years, was spotted by the New England Aquarium team south of Nantucket, suggesting climate change effects.

Iditarod teams faced a challenging first quarter with bare ground damaging sleds and a dangerous encounter with an aggressive moose that injured a dog.

KRG’s civil security director Craig Lingard said that in the last decade or so, “we have seen increased snowfall, even more so on the Hudson coast communities.”

A powerful blizzard raged in the Sierra Nevada as the biggest storm of the season shut down a long stretch of I-80 in California.

"The river was iced over for less then 6 weeks! As opposed to 5 months of ice 2 to 3 feet thick before climate change."

A healthy Cuvier's beaked whale, typically a deep-sea dweller, was found dead on Kodiak Island with no clear cause of death.

The Nigeria Center for Disease Control (NCDC) said no fewer than 2,122 suspected human cases, 411 confirmed cases, and 72 deaths have been recorded from Lassa fever in Nigeria this year.

The current winter can be classified as abnormal and the snowiest in recent decades, the scientific director of the Russian Hydrometeorological Center, Roman Vilfand.

An avalanche on Alaska's Kenai Peninsula killed one backcountry skier and injured two others, prompting warnings for people to stay away from steep slopes as warm weather and high winds raise the risk of more snowslides around the state.

A moose caused a stir in an Anchorage Costco parking lot, interacting with shoppers and snacking on the landscaping, reflecting increased human-moose encounters in the area.

This winter large numbers of redpolls have been observed at bird feeders, from Fairbanks to Anchorage. ADFG reports that mass mortality events of redpolls have also been observed. ADFG advises homeowners not to handle dead or sick birds, and to prevent pets from coming in contact with them. Bird illness may be caused by a bacteria that could also affect people and pets.