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Arctic rivers face big changes with warming climate, permafrost thaw and accelerating water cycle • Alaska Beacon

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Arctic rivers face big changes with warming climate, permafrost thaw and accelerating water cycle • Alaska Beacon


As the Arctic warms, its mighty rivers are changing in ways that could have vast consequences – not only for the Arctic region but for the world.

Rivers represent the land branch of the earth’s hydrological cycle. As rain and snow fall, rivers transport freshwater runoff along with dissolved organic and particulate materials, including carbon, to coastal areas. With the Arctic now warming nearly four times faster than the rest of the world, the region is seeing more precipitation and the permafrost is thawing, leading to stronger river flows.

Major river basins of the Arctic region are mapped.
(NOAA Arctic Report Card image)

We’re climate scientists who study how warming is influencing the water cycle and ecosystems. In a new study using historical data and sophisticated computer models of Earth’s climate and hydrology, we explored how climate change is altering Arctic rivers.

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We found that thawing permafrost and intensifying storms will change how water moves into and through Arctic rivers. These changes will affect coastal regions, the Arctic Ocean and, potentially, the North Atlantic, as well as the climate.

Thawing permafrost: Big changes in Arctic soils

Permafrost thaw is one of the most consequential changes that the Arctic is experiencing as temperatures rise.

Permafrost is soil that has been frozen for at least two years and often for millennia. It covers approximately 8.8 million square miles (about 22.8 million square kilometers) in Earth’s Northern Hemisphere, but that area is shrinking as the permafrost thaws.

Erosion reveals ice-rich permafrost near Teshekpuk Lake, Alaska.(Photo by Brandt Meixell/USGS)
Erosion reveals ice-rich permafrost near Teshekpuk Lake, Alaska.
(Photo by Brandt Meixell/USGS)

Historically, most water going into Arctic rivers flows atop frozen permafrost soils in spring. Scientists call this “overland runoff.”

However, our results suggest that as warming continues, an increasing fraction of annual river flow will come from under the surface, through thawed soils in the degrading permafrost. As the overall flow increases with more precipitation, as much as 30% more of it could be moving underground by the end of this century as subsurface pathways expand.

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When water flows through soil, it picks up different chemicals and metals. As a result, water coming into rivers will likely have a different chemical character. For example, it may carry more nutrients and dissolved carbon that can affect coastal zones and the global climate. The fate of that mobilized carbon is an active area of study.

More carbon in river water could end up “outgassed” upon reaching placid coastal waters, increasing the amount of carbon dioxide released into the atmosphere, which further drives climate warming. The thaw is also revealing other nasty surprises, such as the emergence of long-frozen viruses.

More rain and snow, more runoff

The Arctic’s water cycle is also ramping up as temperatures rise, meaning more precipitation, evaporation, plant transpiration and river discharge. This is primarily due to a warmer atmosphere’s inherent ability to hold more moisture. It’s the same reason that bigger snowstorms are occurring as the climate warms.

Our study found that the bulk of the additional precipitation will occur across far northern parts of the Arctic basin. As sea ice disappears in a warming climate, computer models agree that a more open Arctic Ocean will feed more water to the atmosphere, where it will be transported to adjacent land areas to fall as precipitation.

Changes projected this century in annual rainfall and snowfall simulated by the computer model used in the study. Red areas represent increases.(Rawlins and Karmalkar, 2024, image)
Changes projected this century in annual rainfall and snowfall simulated by the computer model used in the study. Red areas represent increases.
(Rawlins and Karmalkar, 2024, image)

More snow in northern Alaska, Siberia and Canada will lead to more water flowing in rivers, potentially up to 25% more under a high-warming scenario based on our research. There is more carbon in the soil in northern parts of the Arctic compared with the south. With permafrost thaw, those regions will also see more water coming into rivers from below the surface, where additional soil carbon can leach into the water and become dissolved organic carbon.

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More old carbon is already showing up in samples gathered from Arctic rivers, attributed to permafrost thaw. Carbon dating shows that some of this carbon has been frozen for thousands of years.

Impacts will cascade through Arctic ecosystems

So, what does the future hold?

One of the most notable changes expected involves the transport of fresh water and associated materials, such as dissolved organic carbon and heat energy, to Arctic coastal zones.

James McClelland of the Beaufort Lagoon Ecosystems Long Term Ecological Research program examines a water sample from a stream near Utqiagvik on Alaska’s North Slope. The brown tint is dissolved organic matter. (Photo by Michael A. Rawlins)
James McClelland of the Beaufort Lagoon Ecosystems Long Term Ecological Research program examines a water sample from a stream near Utqiagvik on Alaska’s North Slope. The brown tint is dissolved organic matter. (Photo by Michael A. Rawlins)

Coastal lagoons may become fresher. This change would affect organisms up and down the food chain, though our current understanding of the potential affects of changes in fresh water and dissolved organic carbon is still murky.

River water will also be warmer as the climate heats up and has the potential to melt coastal sea ice earlier in the season. Scientists observed this in spring 2023, when unusually warm water in Canada’s Mackenzie River carried heat to the Beaufort Sea, contributing to early coastal sea ice melting.

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Fresh water flowing from rivers such as Canada’s Mackenzie River, at the bottom center of the satellite image, into the Beaufort Sea can break up sea ice early. (NASA Earth Observatory image)
Fresh water flowing from rivers such as Canada’s Mackenzie River, at the bottom center of the satellite image, into the Beaufort Sea can break up sea ice early. (NASA Earth Observatory image)

Finally, more river water reaching the coast has the potential to freshen the Arctic Ocean, particularly along northern Eurasia, where big Russian rivers export massive amounts of fresh water each year.

There are concerns that rising river flows in that region are influencing the Atlantic Meridional Overturning Circulation, the currents that circulate heat from the tropics, up along the U.S. East Coast and toward Europe. Evidence is mounting that these currents have been slowing in recent years as more fresh water enters the North Atlantic. If the circulation shuts down, it would significantly affect temperatures across North America and Europe.

At the coast, changing river flows will also affect the plants, animals and Indigenous populations that call the region home. For them and for the global climate, our study’s findings highlight the need to closely watch how the Arctic is being transformed and take steps to mitigate the effects.The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Alaska

Alaska, Southwest launch new nonstops out of San Diego International Airport

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Alaska, Southwest launch new nonstops out of San Diego International Airport


An Alaska flight crosses over Interstate 5 while landing at San Diego International Airport. (Photo by Thomas Murphy/Times of San Diego)

Service on four new nonstop domestic routes began this month, with two more to come by the end of the summer, San Diego International Airport officials said Tuesday.

The new direct flights by Alaska and Southwest airlines include three California destinations, along with service to Dallas/Fort Worth and Raleigh/Durham, North Carolina. Flights to Boston are set to follow.

The new nonstops began on April 7, when Southwest Airlines added service to Santa Rosa. On April 22, Alaska Airlines began nonstops from San Diego to Oakland, Dallas/Fort Worth and Raleigh-Durham and also resumed nonstops to Santa Barbara after a three-year hiatus.

Southwest is set to add a direct flight to Boston on June 4 and one to Santa Barbara two months later.

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Airport officials also announced the seasonal return of domestic routes and expanded availability of international routes:

The returning domestic routes, all set for May and June, are:

  • May 6 – Jacksonville, Florida and Norfolk, Virginia (Breeze Airways)
  • May 7 – Cincinnati and Raleigh-Durham (Breeze)
  • May 8 – Pittsburgh (Breeze)
  • May 16 – Anchorage (Alaska)
  • June 4 – Pittsburgh (Southwest)
  • June 11 – Kalispell/Glacier, Montana (Alaska), and
  • June 13 – Missoula, Montana (Alaska).

The expanded international flights include two that already began. KLM Royal Dutch Airlines resumed service three times per week to Amsterdam on Feb. 21 and Lufthansa, on Saturday, began flying daily to Munich, Germany out of San Diego.

International expansions to come include:

  • Friday – London-Heathrow, United Kingdom (British Airways), increasing to twice daily, and Calgary, Alberta (WestJet), increasing to nine weekly flights in July.
  • Saturday – Montreal, Quebec (Air Canada), resuming daily, and Vancouver, British Columbia (Air Canada), increasing to three times daily.
  • July 1: Panama City, Panama (Copa Airlines), increasing to five times per week.

The airport now offers 87 nonstop destinations, the most in its history.

“Nonstop flights offered this spring and summer are up by more than 10% over last year,” said Atif Saeed, president and CEO of the San Diego County Regional Airport Authority.



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Tiny Arctic village in Alaska trying to revive its polar bear tourism industry

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Tiny Arctic village in Alaska trying to revive its polar bear tourism industry


Late every summer, hulking white bears gather outside a tiny Alaska Native village on the edge of the continent, far above the Arctic Circle, to feast on whale carcasses left behind by hunters and to wait for the deep cold to freeze the sea.

It’s a spectacle that once brought 1,000 or more tourists each year to Kaktovik, the only settlement in the Arctic National Wildlife Refuge, in a phenomenon sometimes called “last chance tourism” — a chance to see magnificent sights and creatures before climate change renders them extinct.

The COVID-19 pandemic and an order from the federal government halting boat tours to see the bears largely ended Kaktovik’s polar bear tourism amid concerns that the tiny village was being overrun by outsiders. But Kaktovik leaders are now hoping to revive it, saying it could be worth millions to the local economy and give residents another source of income — provided the village can set guidelines that protect its way of life and the bears themselves.

“We definitely see the benefit for tourism,” said Charles Lampe, president of the Kaktovik Inupiat Corp, which owns 144 square miles (373 square kilometers) of land. “The thing is, it can’t be run like it was before.”

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As far back as the early 1980s, anyone in Kaktovik with a boat and knowledge of the waters could take a few tourists out to watch the bears as they lumbered across the flat, treeless barrier islands just off the coast or tore into the ribs of a bowhead whale left by subsistence hunters.

Tourism in Kaktovik soared in the years after federal officials declared polar bears a threatened species in 2008. The rapid warming of the Arctic is melting the sea ice the bears use to hunt seals, and scientists have said most polar bears could be wiped out by the end of the century.

As visitation boomed, the federal government imposed regulations requiring tour operators to have permits and insurance, and that began to squeeze locals out of the industry, Lampe said. Larger out-of-town operators moved in, and before long crowds of tourists were coming to Kaktovik — a village of about 250 people — during the six-week viewing season.

The town’s two hotels and restaurants lost out on some business when large operators began flying tourists in from Fairbanks or Anchorage for day trips. Locals complained tourist gawked at them or traipsed through their yards.

Small plane capacity became an issue, with residents sometimes battling tourists to get on flights to or from larger cities for medical appointments, forcing those left stranded in the cities to get expensive hotel rooms for the night.

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When the pandemic struck, Kaktovik paused visitation. Then in 2021, the federal government, which manages polar bears, halted boat tours, mostly over concerns about how tourists were affecting bear behavior and overrunning the town.

Now Alaska Native leaders are in talks with the U.S. Fish and Wildlife Service to address those concerns and reignite the industry, perhaps as early as 2027. The agency told The Associated Press in a statement that it’s working with Kaktovik “to ensure that any future opportunities are managed in a way that prioritizes visitor safety, resource protection, and community input.”

Among the changes Kaktovik leaders want to see is a limit on how long a boat can sit in the water near the bears. Too long, Lampe said, and the bears get used to humans — making for a dangerous situation when bears wander into town looking for food.

During the height of the tourism boom, it became tougher to haze bears out of town, even with the town’s bear patrol shooting at them with non-lethal rounds. The patrol had to kill about three or four bears per year, compared to maybe one per year before the boom, Lampe said.

“Our safety was at risk,” Lampe said.

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In 2023, a 24-year-old woman and her 1-year-old son were killed in a polar bear attack in Wales, in far western Alaska. It was the first fatal polar bear attack in nearly 30 years in Alaska, the only U.S. state home to the species.

Since the boat tours in Kaktovik were halted, the bears once again seem more fearful of humans, Lampe said.

Polar bear tourism coincides with Kaktovik’s subsistence whaling season. When a crew lands a whale, it’s usually butchered on a nearby beach. While the community encourages visitors to watch or even help, some were recording or taking pictures without permission, which is considered disrespectful, Lampe said.

Sherry Rupert, CEO of the American Indigenous Tourism Association, suggested that Kaktovik market itself as a two- or three-day experience.

Native communities that are ready for tourists “want them to come and be educated and walk away with a greater understanding of our people and our way of life and our culture,” she said.

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Roger and Sonia MacKertich of Australia were looking for the best spot on the planet to view polar bears in the wild when they came to Kaktovik in September 2019. They spent several days in the village, took a walking tour led by an elder and bought souvenirs made by local artists, including a hoodie featuring a polar bear.

For Roger MacKertich, a professional wildlife photographer based in Sydney, the highlight was the boat tours to see bears roaming on the barrier islands or taking a dip in the water. The bears paid them no attention.

“That’s nearly as good as it gets,” he said.

© Copyright 2026 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.



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Man hospitalized with serious injuries following frightening Slush Cup crash, family says

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Man hospitalized with serious injuries following frightening Slush Cup crash, family says


GIRDWOOD, Alaska (KTUU) – A skier sustained serious injuries Saturday after a frightening crash in the Alaska Airlines Slush Cup event at the Alyeska Resort Spring Carnival.

Family members of 29-year-old William Ingrim confirmed that Ingrim is currently hospitalized with injuries sustained participating in Saturday’s pond skim, and said his medical team is working to determine his prognosis.

Video footage captured at the event shows Ingrim skiing down the slope leading up to the pool of water, hitting the jump at high speed, and crossing over almost the entire length of the pool before landing hard near the end of it. Medical personnel staged at the pool can be seen rushing to his aid in the moments after the crash.

Ingrim’s mother, Robin, told Alaska’s News Source on Sunday that she was told her son is “stable” but in a medically-induced coma. She added that he will “probably” be paralyzed.

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Other family members disputed that information Monday, telling Alaska’s News Source that a lot about Ingrim’s status is unknown.

Family members who are currently in Alaska and who spoke with doctors released a short statement Monday night:

“It’s a tough time for Will, but he’s a resilient young man. it’s an unimaginable time for his family and friends and we appreciate all the outpouring of love, prayers and support.”

According to his family, Ingrim is a commercial fisherman. During the winter months, he works as a coach at the Alyeska Ski Club.

Ingrim is one of seven siblings, a brother with six sisters, his family said.

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“He’s precious to me,” Robin said about her son. “Will is the nicest young man you know.

“It’s going to be very hard on all of us.”

As of Sunday, Robin said she has not heard from Alyeska Resort.

Officials with Alyeska told Alaska’s News Source on Monday that their thoughts are with the participant and their loved ones during this time. The resort also stated that the safety of their guests and participants remains their highest priority.

“The Slush Cup is a longstanding event that is carefully planned with safety measures in place, including trained personnel and emergency response teams on site,” the statement from Alyeska spokesperson Bayne Salmon read.

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“Out of respect for the individual and their family, we will not be sharing additional personal details at this time.”

Alaska’s News Source asked the resort if anyone in the past has ever been injured while participating in the event in the past, but have not heard back as of publication.

Editor’s note: This article has been updated with new information from members of the skier’s family, including sensitivity to their wishes in providing updates on his current medical condition.

See a spelling or grammar error? Report it to web@ktuu.com

Copyright 2026 KTUU. All rights reserved.

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