Background Articles

The behemoth snowman that stole Anchorage’s heart years ago is back — as big as always, and looking friendlier than ever.

Dengue is erupting in South America — and has even found its way to the US.

The disease and virus likely exist well beyond the state’s borders, making the new name more scientifically accurate, officials say.

Amid the highest water levels seen since 2005, the city urges residents to be prepared for things to get worse.

Scientists have identified a key nutrient source used by algae living on melting ice surfaces linked to rising sea levels. They discovered that phosphorus containing minerals may be driving ever-larger algal blooms on the Greenland Ice Sheet.

The animal was until now called a Gulf of Mexico Bryde’s whale. The species is considered the region’s only baleen whale, known for comb-like plates in their mouths that strain food in lieu of teeth.The new name designation awaits recognition from a committee, in a process similar to peer review. Scientists have suggested calling the animal the Rice’s whale, after Dale Rice, a biologist who first recognized them in the gulf.

It’s not always lethal, but the fungus has decimated frog populations around the world and is thought to be responsible for up to 90 extinctions. Researchers aren’t sure how it got to Alaska, but it has been observed here since the year 2000.

Three charters flew to distribute 10,921 pounds of donated king salmon to Bush and rural Alaska communities.

As the deepest and most northern of the Great Lakes, Superior was once thought immune to algal blooms, which is why it was such a shock when the first report of blue-green algae came in 2012.

Second of three parts: As salmon stocks have crashed on the Yukon River, so has a key source of income in fish-dependent communities.

Ida Wessman, 28, bought her family's herd of reindeer after her father passed away five years ago. "It's been going pretty well. With this industry you've got high points and low points," Wessman said, alluding to severe 2019-2020 weather that killed 15,000 of the animals.

Sixteen miles (26km) off the windswept coast of northern Scotland, the future of renewable energy is taking shape. Rotating rhythmically in the breeze, the five colossal turbines of the Hywind Scotland wind farm look much like any other off-shore wind project, bar one major difference – they're floating.

By summer, the heart of Alaska’s road system will feature a string of fast-charging stations between Fairbanks and the Kenai Peninsula.

Weather systems that carry warm air inland, bringing not just rain, but also pushing up freezing levels, causing rapid snowpack melting. The atmospheric river hitting B.C.'s central coast will also pose a risk in the Interior.

Fall moose hunts are beginning across Alaska. In western parts of the state, biologists hope that hunting pressure will help protect the health of booming populations. They also want to know why there are so many moose in the first place. It may have a lot to do with shrubs — particularly scrubby willows shooting up at the edges of open tundra. Moose feast on their leaves during the spring and summer. These short woody plants are spreading west, aided by climate change, and moose populations are expanding along with them.

Are the newly found sinkholes really new or are they just newly discovered? And how much of a concern at this point?

"Even ordinary rainfall can be regarded as an extreme event in polar regions," Dou said. This is because rain-on-snow events, which occur when rain falls onto an existing snowpack and freezes into an ice crust, impact wildlife, infrastructure and local communities.

Scientists determine geese died due to exhaustion and salt-poisoning. More birds end up dying because of the long flights they undertake, in extreme conditions.

The climate crisis is bringing extreme heat, changing ocean currents and intensifying storms – and it’s dealing a devastating blow to one of the most threatened groups of birds in the world.

Recently, however, scientists have observed not just shrinking lakes but lakes that have completely gone away. A paper published this year in Nature Climate Change, based on satellite imagery, found widespread lake loss across the Arctic over the past 20 years.