The invasive Pacific oyster is spreading rapidly in Oslofjord, causing injuries to bathers and threatening local ecosystems, with Oslo municipality now offering a reward for their removal.

A large ice flow washed two cars onto Leirbotnvann in Alta, while large blocks of ice blocked the E6.

When the fisherman Lars-Ivar Dale pulled up his net, he suddenly saw a species of fish he had never seen before. Fish scientist is now asking for help.

Twenty-three of the 25 fires so far this year were ignited by human activity. While this year’s heavy snowpack and cold spring pushed back the start to fire season in many parts of the state, climate change is generally causing an earlier snowmelt, said climatologist Rick Thoman.

The risk of wildfires remains high in the southern part of the N.W.T., and the forecast is calling for more hot, windy weather in the days ahead. That makes for "a dangerous, truly extraordinary combination for this time of year."

Researchers at UiT The Arctic University of Norway have found a new volcano at Bjørnøya in the Barents Sea. "Seeing an underwater mud eruption in real time reminds me how 'alive' our planet is," says the expedition leader.

A culvert collapse closed the road at Mile 8 from 9 p.m. Friday until one lane reopened at 10 a.m. Sunday. The culvert was washed out by heavy snowmelt.

Greg Blackburn's boat was being tossed around by "heavy weather" in a notorious stretch of water. Two large orcas, otherwise known as killer whales, were responsible for the ramming but Blackburn said four more would join in - causing extensive damage to the boat. 

The break up on the Yukon River has been delayed this year because of ice conditions. Randy Audet has a home in the Rock Creek subdivision and went to check on it Monday, along with his mom's car. He's working out of town right now at a camp and also has another place to stay outside of Dawson City. Audet's whole property was underwater. "I've never actually seen this happen in 12 years since I've been living here."

Friday saw the N.W.T.'s first two reported wildfires of the season. Both were near Fort Smith. The first forest fire of the season 30 kilometres northeast of Fort Smith. They called the fire a holdover fire, which means it stayed active under snow over the winter.

Health and wildlife officials confirmed a dramatic rise in rabid foxes in Nome and the region, after a winter of increased fox attacks on dogs and people. According to an ADF&G press release, of 61 foxes that were dispatched in Nome and the area, 23 percent (or 14 foxes) tested positive for rabies. Of the 11 foxes that were found dead, or were killed by dogs or people because they behaved ‘rabid’, all tested positive.

This is Hay River's warmest May 3 in 125 years. The previous record high was set in 1898.Temperatures in the community reached 30 C, three degrees warmer than the previous record high for the day. Overall, the southwestern N.W.T. is experiencing an abnormally warm spring. "We're talking, eight to up to 20 degrees above normal," said Jesse Wagar, a meteorologist with Environment and Climate Change Canada.

On our camping trip to Moab we saw these nests everywhere.

In the Midwest, the unofficial start to summer with barbecues seems a little far-fetched as people are still shoveling and having to clear snow off their grills before they even think about using them.

Higher-than-average rainfall in recent days has led to rising water levels along the St. Lawrence River.

Capital area residents in Iceland opened their eyes to 10 cm (3.9 in) of snow outside the window on April 27th. In the last 75 years, there have only been 4 instances of this much snow falling in the Reykjavík area in the second half of April.

Kuujjuaq, Quebec experienced record-breaking temperatures this week. Locals say hunting practices and the ability to travel on the land are being significantly reduced by the thaw.

A research rocket launched by Sweden Space Corp (SSC) early on Monday from Esrange Space Center in northern Sweden malfunctioned and landed 15 kilometers (9.32 miles) inside neighboring Norway. Work on Norwegian territory to salvage any wreckage also required prior consent, the spokesperson said. The Norwegian foreign ministry said it was not aware of whether there was any damage to the surroundings, while a SSC spokesperson said the rocket came down far from any settlement.

The Ministry of Health of Chile notified WHO of the detection of human infection with avian influenza A(H5) virus. The patient is a 53-year-old male from the Region of Antofagasta in the north of Chile.