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The Sunday Minefield – May 19, 2024

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The Sunday Minefield – May 19, 2024


The second session of the 33rd Alaska Legislature adjourned sine die on Wednesday night. Well at least the Senate did. The House was another story. They did not adjourn until early Thursday morning, which was a clear violation of the Alaska Constitution. With the budget passing, a last minute deal for a temporary fix to the correspondence program, and two energy bills passing, there was no need for an immediate special session. With more than 71,000 ballots counted, Suzanne LaFrance is beating Anchorage Mayor Dave Bronson by more than seven points. And the June 1 deadline to file to fun for the Legislature is less than two weeks away.

A friendly message and reminder to all our readers. The Landmine is made possible by myself and a team of awesome Alaskans. I just got back from Juneau for my sixth session in a row reporting on the Legislature. And we will again be providing in-depth coverage for both the primary and general elections. If you enjoy the content we provide, please consider making a one time or recurring monthly donation. You can click here to donate. We have a donation system that makes it super easy. We would really appreciate it. And thanks to everyone who has been supportive!

Legislature passes operating budget, energy bills, and correspondence fix before adjourning sine die

The following is an excerpt from this week’s edition of the Alaska Political Report. You can click here for more information about the Political Report. A subscription is $1,299/year per organization. Discounted pricing is available for non-profits and government entities. Our coverage of the budget starts with the governor’s proposed budget, and we track everything in detail through the entire process. If you have any questions or would like to subscribe, please email jeff@akpoliticalreport.com.

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On the final day of the legislative session, the House and Senate each adopted the conference committee report for the operating budget (see our special edition from Tuesday that details the changes made by the conference committee).

The Senate voted 17-3 to pass the budget just before 11 pm. The House voted 22-18 to pass the budget mere minutes before the midnight constitutional session limit. Because the budget did not require a savings draw from the Constitutional Budget Reserve (CBR), a three-fourths vote was not required for the budget to pass.

The House concurred with the Senate’s changes to House Bill 50. HB 50 was originally a bill about carbon storage from GOP Gov. Mike Dunleavy, but was amended by the Legislature to include another bill from Dunleavy about geothermal resources, as well as several Cook Inlet provisions dealing with natural gas storage regulation, the releasing of seismic and geophysical data, and reserve-based lending – which Bluecrest says is important for further development of their Cosmopolitan field.

The House also concurred with the Senate’s changes to House Bill 307. HB 307 is a Dunleavy bill about utility transmission in the Railbelt, but ended up becoming a broader energy bill. Wasilla Republican Rep. Jesse Sumner had inserted language that said utilities could not pass on the costs of an LNG import facility to ratepayers, but the Senate removed that provision. The bill also exempts new power generation from state and local taxes.

In a clever move, House leadership worked with the Senate to insert the provisions of House Bill 400 – a House Education Committee bill to address the legal issues with the correspondence program – into House Bill 202. HB 202 is a bill from Palmer Republican Rep. DeLena Johnson dealing with opioid overdoses. Because the correspondence language was added to a House bill that was in the Senate, the House was forced to take a concurrence vote. If they had failed to concur, there would not have been enough time for a conference committee to work out the differences. The House voted 40-0 to concur with the Senate’s amendments.

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Others in the House had wanted to put the correspondence language in a Senate bill before sending it back, but that would have resulted in a myriad of education amendments on the House floor, like raising the Base Student Allocation (BSA). There was not enough time for that. By passing the correspondence language, the Legislature is likely to avoid a special session later this year to address the issue. The correspondence language is only good until July 1, 2025, meaning the next Legislature will have to deal with this. But this buys them time in an election year and allows them to see what the final Supreme Court ruling is.

The one other reason for a possible special session later this year is Cook Inlet royalty relief. The House majority and Gov. Dunleavy both want to lower the royalty rate for Cook Inlet gas to incentivize more production. The House sent House Bill 223 – a royalty relief bill from Sutton Republican Rep. George Rauscher – to the Senate on Tuesday, but it failed to get a hearing.

Royalty relief is something Furie, owned by John Hendrix, has been aggressively pursuing. Furie holds leases in the Kitchen Lights Unit, where there is believed to be significant natural gas reserves. Furie says that current royalty rates are preventing them from developing more gas. But the Senate, namely Sitka Republican Sen. Bert Stedman, does not want to lower royalty rates without getting proper input from the Legislature’s consultant, GaffneyCline. This is something to possibly watch for in late summer or early fall.

Legislators and staff are already packing up and heading home. The June 1 filing deadline to run for the Legislature is just over two weeks away. We will be providing ongoing coverage and analysis throughout the August and November elections.

Other Happenings 

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One of the biggest frustrations this session was the sheer number of bills stuffed into other bills at the end of session. This isn’t uncommon but this year it was a lot more than normal. It makes it hard for even close observers to track what is happening and nearly impossible for the public. One example is Senate Bill 189. This was a bill to stop the sunset of several boards including the Marijuana Control Board and the Board of Game. But at the last minute the House loaded it up with a bill from Representative Julie Coulombe (R – Anchorage) dealing with childcare tax credits and a bill from Representative Mike Cronk (R – Tok) dealing with hunting guides. How all of that fits into the constitutional single subject rule is beyond me. The truth is it probably doesn’t. Check out the new title for SB 189!

The latest election count shows Suzanne LaFrance well ahead of Anchorage Mayor Dave Bronson. The election is scheduled to be certified on May 31. LaFrance will be sworn in as Anchorage’s next mayor on July 1. Anchorage mayoral terms are three years, with a limit of two consecutive terms.

The June 1 filing deadline to run for the Legislature is fast approaching. Stay tuned for a Landmine article detailing all of the races to watch. One thing is certain, there will be much less turnover this cycle than the last one. A big factor for the high turnover in 2022 was it was a redistricting year – something that happens every ten years. Two House incumbents aren’t seeking re-election, Representatives Jennie Armstrong (D – Anchorage) and Laddie Shaw (R – Anchorage). And Representative Ben Carpenter (R – Nikiski) is challenging Senator Jesse Bjorkman (R – Nikiski). There will be four or five other House races to watch that will determine who controls that chamber next year.

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Representative David Eastman (R – Wasilla) filed a letter of intent for re-election two days ago. There was speculation he might run for the Senate seat, but he filed for his House seat. He faces Republican Jubilee Underwood. That will be a race to watch.

Republican Doyle Holmes filed a letter of intent today to challenge Representative Kevin McCabe (R – Big Lake) again. McCabe beat him by 10 points in 2022 after votes were retabulated using ranked choice voting.

I have to give a big shout out to my girl Katie McCall for her win in our 100 meter dash on Wednesday. During the debate of the transgender sports bill last weekend I joked with her that I could beat her in a 100 meter dash. It quickly became obvious that everyone thought I stood no chance! So we decided to race. It came together on the evening of the last day of session during the dinner break. The race took place behind the Capitol. I could not believe how many people came to watch! You can watch the race here. Someone sent me that hilarious video. Even though I lost the race I kind of feel like I won for three reasons: I did not get hurt, I did not fall, and I did not get smoked! Looking forward to our rematch next year!

This Week’s Loose Unit 

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On rare occasions we get a back-to-back Loose Unit. This is one of those occasions. This week’s Loose Unit is again the entire 40-member Alaska House of Representatives. It would take too much space to highlight just how loose the House got on the last day of session. So I am going to leave it to three things.

One, the House did not pass the operating budget until eight minutes before the constitutional deadline. And if that was not loose enough, the vote almost failed. When the vote total was 22-18, Representative Andy Josephson (D – Anchorage) switched his vote from yes to no. This promoted Representative Jesse Sumner (R – Wasilla) to also switch from yes to no, making the vote 20-20, one short. Sumner likely did this to get Representative McCabe (fellow Valley rep and majority member) to switch from no to yes, which he did. Then, Sumner went back to yes. The whole thing was super loose. You can even hear the chief clerk say, “This is not a game.” You can watch the crazy vote here. Representative Carpenter was the only majority member to vote no.

Two, the House passed five bills after the constitutional deadline of midnight. You can read this Landmine article that details just how loose that was.

Three, after all of that the House failed multiple times to get the 21 votes needed to adjourn sine die. Honestly House Speaker Cathy Tilton (R – Wasilla) should have just gaveled out and said they were well past the clear constitutional deadline. But she chose to wait to get to 21. It was further complicated by someone placing a call on the house, which prevented any member from leaving the chamber without an escort. All of it was over trying to get the elections bill out of the limbo file. Some majority members wanted to vote on it but many, including the original sponsor, hated the changes the Senate made. This is what caused the deadlock. In addition to being super loose, the whole thing was also really embarrassing.

If you have a nomination for this week’s Loose Unit, or if you have any political news, stories or gossip (or any old pics of politicians or public officials) please email me at jeff@alaskalandmine.com.

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Norwegian filmmakers’ documentary spotlights homelessness in Anchorage, aims for Alaska screening

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Norwegian filmmakers’ documentary spotlights homelessness in Anchorage, aims for Alaska screening


ANCHORAGE, Alaska (KTUU) – Two Norwegian filmmakers say their debut documentary, Anchorage Welcomes You, is meant to put viewers face-to-face with people living on Anchorage streets — not to prescribe a political fix, but to “describe the situation” and the human stakes behind a crisis visible across the city.

“I think the core story is to shine a light on the prevalence of the problem that is in Anchorage when it comes to drug abuse and homelessness,” said director/cinematographer Peter Gupta. “But it’s also to show how people are … capable of taking a wrong turn in life and coming back from it.”

The documentary was shot over multiple trips to Anchorage spanning roughly two years, beginning with a summer 2022 visit, followed by a winter 2024 return and a completion last fall.

Gupta, along with editor/screenwriter Rasmus Aarskog Sætersdal, said the project first grew out of Gupta’s canoe trip down the Yukon River, where he said he saw “communities ravaged by drugs and alcohol.”

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“I canoed the whole length of the Yukon in 2017,” Gupta said. “And I saw what was going on in all the villages. And I wanted to go back and make a film at some point.”

Gupta said he met Anchorage resident Erinn Leann — a central figure in the film — at the end of that trip and told her then he planned to return to Alaska to make a documentary.

A title drawn from a sign — and the ‘duality’ beneath it

The film’s title comes from the weathered “Anchorage Welcomes You” sign seen by commuters entering the city — and, the filmmakers said, from what they described as the contrast between Anchorage’s image and the encampments they saw nearby.

“It was interesting when we were there the first year and we saw this Anchorage welcomes sign falling apart and a whole … camp growing up beneath it,” Sætersdal said. “And it was just this … you can say duality of presentation for the city.”

Gupta said the pair debated keeping the name, but after multiple test screenings they found Alaskans preferred the working title.

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“We’ve had ambivalent feelings about the title of the film because it’s kind of tongue in cheek,” Gupta said. “We didn’t want to keep it at some point, but the people from Anchorage really wanted to keep it.”

Building trust — and setting rules

Much of the film unfolds in intimate, up-close moments that are hard to capture in traditional daily news reporting.

Sætersdal said filming required clear rules and consent. He said the filmmakers spent time walking the same routes and meeting the same people repeatedly. Gupta added that trust was foundational.

“I think it’s so important, that respect for whoever is participating, that’s a prerequisite for bringing them into the project,” he said.

Anchorage through outsiders’ eyes

Asked what makes homelessness in Anchorage distinct, Gupta said his travels shaped his perspective. Gupta described what he called “social fragmentation” and “hopelessness” — a situation he said can be more than just a lack of material resources.

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“I’ve been around the world,” he said. “And the poverty in the United States is different.

“When you go to the United States, there’s a social fragmentation in a way that is quite unique. And I think there is a hopelessness and a different character to it … it’s not only a material problem. It is also a social problem.”

Sætersdal added Alaska’s identity as a frontier draws people seeking escape.

“Alaska still has this mythical place in imagination as the last frontier,” he said. “You see also people coming from all over the country … coming to Alaska in escapism of something. And then there’s nowhere else to go.”

‘Not to tell the people of Anchorage what to do’

Gupta and Sætersdal said they hope the documentary sparks conversations without presenting a single prescribed solution.

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“What we’re trying to do with this film is not to tell the people of Anchorage what to do about homelessness,” Gupta said. “It’s about describing what’s happening and sparking a conversation.

“We hope that we can kind of make the homeless appear as resourceful and also capable of changing. But it’s not down to us what to do with it.”

Returning to Anchorage — and trying to bring the film home

Now, the two say the hope is to screen it in Alaska — and eventually get broader U.S. distribution. They said navigating distribution has been its own grind, but Sætersdal added that Alaska continues to pull at them creatively.

“Alaska really is a place that it sticks to you,” Sætersdal said. “You can’t unsee it once you’ve been there and you can’t like brush it off. It becomes a part of you.”

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

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Copyright 2026 KTUU. All rights reserved.



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10 Reasons the 2026 Princess Cruises Season Is the Ultimate Alaska Power Move – AOL

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10 Reasons the 2026 Princess Cruises Season Is the Ultimate Alaska Power Move – AOL


Alaska already has glaciers, whales, old gold-rush towns, wild seafood, and mountains. But Princess Cruises is taking the year by storm with something bigger than a standard summer schedule. The line is sending eight ships to Alaska, adding new North-to-Alaska programming, and giving travelers more ways to turn their trip into a full land-and-sea adventure.

Princess Is Going Bigger Than Ever

Credit: Wikimedia Commons

The 2026 Alaska season gives Princess its largest presence in the region to date, with eight ships, 180 departures, and visits to 19 destinations. Travelers are not boxed into a narrow route or one small batch of dates. The ship lineup includes Star Princess, Coral Princess, Royal Princess, Ruby Princess, Grand Princess, Emerald Princess, Discovery Princess, and Island Princess. For anyone comparing Alaska cruise options, that much capacity means more itinerary choices.

Star Princess Gives The Season A New Headliner

Credit: Wikimedia Commons

Star Princess is the newest ship in the Princess fleet. This matters because Alaska cruising can easily feel like a trade-off between destination and ship experience. Princess is putting one of its newest vessels into one of its most important regions. Star Princess also hosts the new Après Sea experience inside The Dome, a high-positioned venue designed around big views.

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Glacier Days Get The Full Main-Event Treatment

Credit: Getty Images

Glacier viewing has always been one of Alaska cruising’s biggest draws, but Princess is giving it extra structure through “The Glacier Experience: A Signature Princess Day.” On select Glacier Bay sailings, guests get close-up glacier views, live narration, and Park Ranger commentary from the bridge and open decks. There are also theater presentations and Junior and Teen Ranger programming. VIP viewing areas and bowfront access add another layer for guests who want the best possible look at the ice.

The Trip Can Extend Deep Into Alaska By Land

Credit: Wikimedia Commons

Princess has long built part of its reputation around cruisetours that combine time at sea with inland travel. A seven-night sailing can deliver a strong Alaska trip in itself. However, inland travel opens the door to scenic train journeys, Princess Wilderness Lodges, and routes to places such as Denali, Kenai, and the Mt. McKinley lodge area. The 2026 season continues to lean into sea-and-land travel.

North To Alaska Makes The Ship Feel Local

Credit: Wikimedia Commons

Princess first introduced its North to Alaska program in 2015, and in 2026, every Princess ship sailing in Alaska will carry the new programming. The whole idea is to bring local culture, food, personalities, and storytelling on board so guests learn something about Alaska between ports. This includes Native Alaskan speakers, naturalists, enrichment presenters, and destination-focused events that connect the trip to the place outside the ship. Names in the speaker series include Tlingit voices, Alaska Native educators, writers, and photographers.

Alaska Seafood Gets A Bigger Seat At The Table

Credit: Wikimedia Commons

Princess is leaning into Alaska’s food identity with “A Taste of The Great Land.” The 2026 specialty restaurant offerings feature sustainably sourced, wild-caught Alaskan seafood created with regional suppliers. Crown Grill offers dishes such as Wild King Salmon, Alaskan Jumbo Lump Crab Cake, and Jumbo Lump Crab paired with Butter-Broiled Lobster Tail. Sabatini’s Italian Trattoria also brings Alaskan fish into an Italian-style setting.

The Entertainment Has Alaska In Its Bones

Credit: Wikimedia Commons

This season also features “Candlelight Concert Series: Fire & Ice,” with Alaska singer-songwriters performing in a candlelit setting twice per voyage. This gives the onboard entertainment a stronger sense of place than a generic music night. Returning favorites add a livelier side, including Great Alaskan Lumberjack Show elements with axe-throwing recruits, trivia, and timber-sports storytelling tied to Ketchikan. Select sailings also feature Deadliest Catch captains and crew members sharing Bering Sea crab-fishing stories. The lineup draws from Alaska’s labor, music, weather, and folklore.

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Families Get More Than A Pretty View

Credit: Tripadvisor

Younger travelers are getting special attention, not a watered-down version of the adult trip. Glacier Bay Junior Rangers let kids complete activity books, attend presentations, and earn a badge and certificate through a partnership with the National Park Service. Gold Rush Adventures pulls families into a shipwide Klondike-style search, while Great Alaskan Expedition offers youth and teens a three-hour team-based experience across land, sea, and air. As puppies in the Piazza also return on ships visiting Skagway, guests get to see Alaskan Huskies and sled-dog culture.

Après Sea Gives Alaska A Stylish Cooldown

Credit: Wikimedia Commons

After a long day outside, Princess is adding a dedicated wind-down ritual through Après Sea. The setup is inspired by après-ski culture. Guests can expect warm drinks, happy hour, and panoramic views after they return from exploring. On Star Princess, the experience is in The Dome, and it provides a strong visual setting at the top of the ship. A relaxed lounge concept gives the evening its own personality, and guests don’t have to jump straight from adventure into dinner.

MedallionClass Keeps The Whole Trip Moving Smoothly

Credit: Wikimedia Commons

Alaska days can get busy fast, with early excursions, glacier viewing, dinner plans, family meetups, and plenty of time spent moving around the ship. The Princess Medallion Class setup helps cut down on small hassles. The wearable Medallion supports contactless boarding, keyless stateroom entry, onboard ordering, contactless payment, ship navigation, and locating travel companions through the app. When the day already includes ports, wildlife, ice, and dinner reservations, fewer friction points onboard can make a real difference.



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Hantavirus outbreak, climate risks from microplastics and Alaska’s surprise tsunami

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Hantavirus outbreak, climate risks from microplastics and Alaska’s surprise tsunami


Rachel Feltman: Happy Monday, listeners! For Scientific American’s Science Quickly, I’m Rachel Feltman. Let’s kick off the week with a quick roundup of some science news you may have missed.

First, you may have seen some headlines last week about an outbreak of hantavirus on a cruise ship. Here to tell us more about what happened is Tanya Lewis, SciAm’s senior desk editor for health and medicine.

Tanya, thanks so much for coming on to walk us through this.


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Tanya Lewis: Yeah, no, thanks so much for having me.

Feltman: Why are we talking about hantavirus and this cruise ship? What happened?

Lewis: Just to catch people up, this outbreak was first noticed about a week ago on a ship called the MV Hondius, which was a cruise ship departing from South America, Argentina. And the people that were sickened and unfortunately passed away, two of those individuals were a married couple who had been traveling—it was a Dutch couple—we think were infected in Argentina and then boarded the ship. And then subsequently, multiple other people have been infected. As of May 7 the number of people on this cruise ship who had been infected with hantavirus was eight people. So that probably could still change.

But you might not have heard of hantavirus before, but it is a virus family that people have been sickened with before, and it’s generally spread by rodents, like rats or mice. And this commonly happens in places where people are exposed to the feces of these animals.

And it causes pretty severe disease. It can cause anything from respiratory distress and fluid in the lungs to some forms of it can be more of, like, a hemorrhagic fever, kind of like Ebola. But the kind that we’re seeing on this cruise ship is more the respiratory kind.

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But yeah, this is a virus that, while it is fairly rare to be infected with it, it’s quite lethal. The estimates of its lethality vary, but anywhere from, like, 30 percent to even 50 percent of people infected have died of it.

Feltman: Right, well, and like you said, it, it’s usually spread through rodent feces. But unfortunately, the specific virus we’re talking about, with regard to this cruise ship, is one of the rare instances where it is technically possible to spread from human to human. Can you tell us a little bit more about that?

Lewis: Basically, these individuals on the ship were thought to be infected by human-to-human transmission. At least, that’s the working hypothesis right now. And the reason has to do with the exposure routes.

As I mentioned two of the people were a married couple, so we’re talking about, like, very close contact. This is not something like SARS-CoV-2, the virus that causes COVID, where it’s, like, in the air and wafting around for hours or something. This is something that you would probably need to be, like, breathing very closely, in the same space. And of course, cruise ships are, like, kind of the perfect petri dish for that.

Feltman: Yeah.

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So I think there are two things to talk about. There’s, one, why experts are not immediately super concerned about pandemic potential from this specific thing, but also why it is reasonable that I think so many of us, when seeing this news, went, “Uh-oh. We’re—this is a reminder of public-health paradigms I do not wanna be reminded of.”

So let’s start with the good news: Why are experts not freaking out about this?

Lewis: Yeah, so we have to remember that this is a virus that is very different than a lot of the pathogens that have caused respiratory pandemics in the past. In order for a pathogen to be a major pandemic concern, it needs to be very transmissible, and that is something that we have not yet seen with this hantavirus.

I should say, this particular strain is the only strain that has been shown to transmit human to human; it’s called the Andes strain. Most hantaviruses are not thought to spread that way. So the good news is, it’s kind of rare. The bad news, maybe, is that it does appear to have spread, at least, you know, in a limited way, between people.

But yeah, in terms of why experts are not, like, immediately concerned that this will spark a larger epidemic, I think the reason is just that this type of virus and the way it spreads is not conducive, as far as we know, to that type of outbreak. And it’s also happening in a very contained space, so although there have been reports that several of the people on board the ship have disembarked and we are still following that closely, at this point there is no indication of wider community spread, which is what we call it when people are getting infected who have not had direct exposure to the infected individuals.

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Feltman: Is there any concern that the time that this virus spent, you know, in such a perfect petri dish may have given it the opportunity to mutate and be better at jumping from person to person?

Lewis: I think what virologists would tell you is, like, the more opportunities a virus has to jump between people, the higher the risk of it developing, like, a concerning mutation that makes it more transmissible.

That said, we’re still talking about a relatively small number of individuals. I mean, eight people sounds like a lot, but, you know, when you’re talking about this being very close quarters on a ship, this is not like, oh, you’re walking into a giant city like New York City and infecting everyone around you or something. So I think that is a little bit reassuring, perhaps, at this point.

But that said, we’ve been humbled before, and I think if there’s one lesson we can take from the COVID pandemic, it’s that we shouldn’t panic, but we should definitely pay attention. And at least scientists wanna know and learn more about this virus and understand it better.

Feltman: I think a lot of people are getting a little freaked out by this news. [Laughs.]

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Lewis: Yeah, and I mean, I would be the first to say, like, something like this you hear about, it’s, like, instantly puts you back in that fearful space of 2020. And of course, there was the famous cruise ship, the Diamond Princess, where some of the early COVID cases happened. So that is always concerning.

On the other hand, you know, we have to sort of put it in perspective and remember this is a rare virus and it is something that people have been infected with in the past, so it’s not a completely new virus, unlike SARS-CoV-2, which we had never seen before. So we do have some idea of how this virus works, and while we don’t have any specific treatments for it, we do at least have experts who study it. So that should hopefully give some reassurance that, like, this is not a complete unknown. We are not starting from square one.

Feltman: Thanks for that, Tanya.

Now, listeners, keep in mind we had this conversation on Thursday, May 7. But you can always go to ScientificAmerican.com for more up-to-date science news.

Now for new research on micro- and nanoplastics—but this isn’t the health story you might be expecting. According to a study published last Monday in Nature Climate Change, these tiny bits of broken-down plastic could be contributing to our planet’s warming temperatures.

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For starters, just in case you are blissfully unaware: yes, there are, unfortunately, microplastics in the sky. According to a study published in 2021, some of these particles swirl up into the air from the road, where tires and brakes frequently shed small pieces of plastic.

Now, the idea of microplastics permeating the air and even seeding clouds into existence is creepy enough, in my opinion. But this new study suggests they can also have a warming effect on the atmosphere.

Here’s how that would work: if you’ve ever spent time on a patch of blacktop on a sunny summer day, you know that black material absorbs heat. Conversely, white material reflects heat. The same thing happens when you scatter bits of dark and light plastic into the atmosphere, which is what humanity has inadvertently done quite a bit over the past few decades.

Unfortunately, according to this new study, any cooling effects we might get from light microplastics are probably vastly outweighed by the warming effects of dark microplastics. While the estimated effect is a small percentage of the warming fueled by soot from coal power plants, the results are still worrying.

As Jackie Flynn Mogenson reported for SciAm last week, we don’t actually know the concentration of micro- and nanoplastics currently in our atmosphere. But the authors of the new study argue that global climate assessments should do more to factor in these tiny plastic bits. And their findings serve as a great reminder that when we talk about the downsides of plastic, we should recognize that there may be impacts far less concrete and obvious than creating growing piles of trash in landfills.

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Now I’ll turn the mic over briefly to SciAm’s chief newsletter editor, Andrea Gawrylewski. She’s gonna tell us about the science behind a tsunami that caught Alaska by surprise.

Andrea Gawrylewski: Thanks, Rachel.

Last summer, in August, a small cruise boat called the David B spent the night in an inlet about 50 miles from Juneau, Alaska. They were supposed to be at anchor nearer to Juneau in this beautiful fjord called Tracy Arm, but bad weather had forced them to pick another place to stay. And it turns out that detour may have saved their lives.

In the morning, from where they were anchored, the boat’s owners noticed seawater rolling over the nearby [sandbar] and shoreline. It was weird because the tide was supposed to be out at that time, and they had no idea why the water was so high.

When scientists heard about the strange sea-level rise, they began examining seismic data, they looked at aerial footage and satellite images, and determined that a massive landslide had occurred at the top of the Tracy Arm fjord.

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So what had happened?

The South Sawyer Glacier at the top of Tracy Arm has been steadily shrinking and retreating for the last 25 years. In the spring and summer of last year the ice retreated inland several hundred feet, exposing so much bare rock that it ultimately caused a landslide.

That big slide hit the water and sent a tsunami racing through the fjord—like, so much water that the tsunami surged more than 1,500 feet up the sides of the fjord and sloshed back and forth, like in a bathtub.

That event also produced a seismic signal equivalent to a magnitude 5.4 earthquake. Scientists found smaller seismic events in the data that had occurred at least 24 hours before the big one, and they were increasing exponentially in intensity in the six hours before the landslide.

So now the question is: Could these early seismic signals be used as a warning system? One scientist at the Alaska Earthquake Center has been testing a landslide detection algorithm, and so far it’s detected 35 landslides in near real time. Sending out warnings within three to four minutes of big events could make all the difference to people who live in the area, so scientists are working to improve tools like these.

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If you want more updates like this, sign up for my free daily newsletter, Today in Science, at SciAm.com/#newsletter.

Feltman: That’s all for this week’s science news roundup. We’ll be back on Wednesday to talk all about protein. Why is it everywhere all of a sudden? We’ll cut through the hype so you can just enjoy your tofu in peace.

Science Quickly is produced by me, Rachel Feltman, along with Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith. Subscribe to Scientific American for more up-to-date and in-depth science news.

For Scientific American, this is Rachel Feltman. Have a great week!



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