Monday, August 02, 2021

Conservatives may be willing to take on climate change — if you call it something else

Fires are raging in their backyards. 
But many still scoff at global warming

By KATE YODER
SALON
PUBLISHED AUGUST 2, 2021 
Bleached coral on the Great Barrier Reef outside Cairns Australia during a mass bleaching event, thought to have been caused by heat stress due to warmer water temperatures as a result of global climate change. (Getty Images/Brett Monroe Garner

Grist is a nonprofit, independent media organization dedicated to telling stories of climate solutions and a just future.



On July 6, lightning sparked a fast-spreading wildfire in southern Oregon that's now the largest in the country and the state's third-largest on record. The Bootleg Fire, only recently getting contained after a period of cooler weather, has led more than 2,400 people to evacuate, destroyed at least 161 homes, and sent toxic smoke traveling across the country. The heat of the flames was so intense that it spawned a fire tornado.

Drought and extreme heat have plagued the West this year, combining with a century's worth of wildfire suppression for an unprecedented fire season. A warming planet makes these giant fires more likely, and people around the world are seeing the flames and smoke, coming months ahead of schedule, as a wake-up call. So what did locals in the largely rural, conservative parts of Oregon's wildfire country think about the most recent conflagration? Recent reports suggest that many people living near the Bootleg Fire don't see any connection to rising temperatures.

For those who accept the scientific consensus around climate change, this sounds like a denial of reality. But new research suggests that many conservatives won't link extreme weather with global warming no matter how extreme the weather gets in their backyards. Some experts argue that the phrase "climate change" has become so polarizing that you'd be better off avoiding those words altogether if you really want to address the planetary crisis.

"We get so hung up on forcing people to agree with us on the facts that I think we miss the bigger picture," said Brianne Suldovsky, an assistant professor of communication at Portland State University. "You know, I want my conservative uncle to accept that climate science is real and valid and that humans are causing climate change. Fine, but we've tried that, and it's not working."

It's not just conservatives who are ignoring the local evidence about their weather. It's liberals, too. In a working paper, Suldosvky and a statistics researcher at Portland State surveyed people in Oregon, asking them if certain kinds of weather events were getting more or less frequent in their area, and more or less extreme. Then they looked at the ZIP codes that the participants lived in and compared their responses to local data on precipitation rates and temperature.

People who accepted the scientific consensus around climate change saw adverse weather events as being more frequent in their area — even when they weren't. Likewise, people who denied climate change didn't see extreme weather as extreme, even when it was happening right in front of them. People of all political persuasions often choose to see what they want to see.

"What is predicting people's weather perceptions has nothing to do with their actual weather," Suldovsky said. "It really is just whether or not they think climate change is happening, and whether or not they're concerned about it." Suldovsky attributes this to a mental quirk called "motivated reasoning," a tendency people have to look for explanations to justify their preexisting conclusions, rather than weighing the evidence and drawing a conclusion.

The Washington Post recently spoke with locals in the small towns near the Bootleg Fire and found that many conservatives aren't talking about the overheating planet — except maybe to scoff at the idea. They tended to point the finger for the supercharged blazes elsewhere, at environmentalists who have stopped logging efforts, for example. "Now the top end of the Forest Service are a bunch of flower children," one resident of the town of Lakeview, southeast of the fire, told the Post. "That's what the real problem is. It's not that much hotter. It's environmentally caused mismanagement."

Suldovsky grew up in a very conservative household in a rural town in Idaho, and she didn't use to accept the science behind climate change or evolution. She remembers coming to a high school science class prepared with Bible verses, arguing with her teacher that the Earth was only 6,000 years old. Nothing would change her mind — until later on, when she discovered a love of philosophy and questioned her beliefs. She says that "shoving more information" at people, or calling them stupid or anti-science, usually backfires.

"I deeply empathize with feeling like experts aren't on your side, and that science isn't on your side," Suldovsky said. "And that position isn't remedied by being told more science, right?"

Suldovsky recently co-authored another study, published in the journal Climatic Change, that looked at how liberal and conservative Oregonians think differently about climate change. Through surveys, she found that liberals see climate science as simple and certain, and they tend to defer to the experts on climate change, even if what scientists are saying contradicts their personal experience. On the other hand, conservatives see climate science as complex and uncertain and tend to prioritize their own life experience over expert opinion. That's why Suldovsky recommends leveraging conservatives' experiences when talking to them about issues related to our overheating planet (without using the words "climate change," of course).

There's a growing sense among some experts in communication that it's best to avoid the phrase. The American Meteorological Society has recommended talking about more frequent floods, worsening seasonal allergies, and extreme heat without mentioning the root of the problem. Sometimes that means using a byword, like "future-proofing" or "resilience." Other times, it means changing your argument from one focused on climate change to an issue that conservatives tend to care more about, like the economy or energy independence. That approach works better for addressing the root of the problem — reducing carbon dioxide emissions and switching to renewables.

"There are lots of things we can gather support for that … don't necessarily require us to convince people that human-caused climate change is real," Suldovsky said. For example, consider the 115-degree heat wave that melted streetcar cables in Portland, buckled roads in Seattle, and killed more than 1,000 in Oregon, Washington, and British Columbia. It'll be easier to convince conservatives in the Pacific Northwest that they need to be more prepared for super-hot temperatures in the future than to get them to say that the extreme heat was linked to global warming.

There's evidence that this approach works: Towns along the coast of North Carolina have adopted rules that restrict new construction to higher ground, mentioning "flood damage" but ignoring the hot-button topic "sea-level rise." In the Great Plains, local governments have paved the way for bike paths and required tree planting on new developments in the name of outdoor recreation and clean air.

Suldovsky gets that the pragmatic advice to gloss over "climate change" is controversial. But in the end, she said, it's better to get something done than to keep arguing about a mostly lost cause.

"Do you want to prove that you're correct, or do you want to adapt for climate change? It kind of feels like at this point, we need to choose between one or the other."

 

Monitoring Fukushima radiation on land and sea

30 July 2021


Japanese laboratories monitoring radionuclides in seawater, marine sediment and fish near the damaged Fukushima Daiichi nuclear power plant continue to produce reliable data, according to a new International Atomic Energy Agency (IAEA) report. Meanwhile, Tokyo Electric Power Company plans to rear fish in treated radioactive water from the plant to demonstrate its safety. A University of Georgia study has shown that radioactive contamination in the Fukushima Exclusion Zone can be measured through its resident snakes.

Seawater samples being taken near the Fukushima Daiichi plant (Image: IAEA)

The IAEA has since 2014 organised missions to support the collection of marine samples for interlaboratory comparisons of radioactivity analyses. The first phase of the Marine Monitoring Confidence Building and Data Quality Assurance project covered the years 2014 to 2016. It found that Japan produced reliable data on marine samples near Fukushima Daiichi plant.

In this second phase of the project, the IAEA carried out a range of activities focused on marine monitoring data quality, including interlaboratory comparisons (ILCs) of seawater, sediment and fish samples collected in four sampling missions conducted from 2017 to 2020 near the Fukushima Daiichi plant.

ILCs involve different laboratories separately testing and analysing samples and then comparing results and procedures to determine their reliability and accuracy. The samples in the second phase of the project were analysed at 12 laboratories in Japan, at the IAEA Environment Laboratories in Monaco and two laboratories in other Member States (in Canada and Switzerland) that are part of the network of Analytical Laboratories for the Measurement of Environmental Radioactivity.

"Following these ILCs, the IAEA can confidently report that Japan's sample collection procedures follow the appropriate methodological standards required to obtain representative samples," the new report states. It added that "the results obtained demonstrate a continued high level of accuracy and competence on the part of the Japanese laboratories involved in the analyses of radionuclides in marine samples for the (country's) Sea Area Monitoring Plan".

"It can be concluded that over 97% of the results were not significantly different from each other, and this shows that the participating Japanese laboratories have the capacity to accurately analyse the samples," said Florence Descroix-Comanducci, director of the IAEA's environment laboratories in Monaco. "The results also demonstrate a high level of consistency among the Japanese laboratories and with laboratories in other countries and the IAEA."

The IAEA Marine Monitoring Confidence Building and Data Quality Assurance collaboration with Japan has been extended for a further two years in order to conduct additional ILCs and proficiency tests and build on the already completed work.

Impact on marine life


At the Fukushima Daiichi site, contaminated water is treated by the Advanced Liquid Processing System (ALPS), which removes most of the radioactive contamination, with the exception of tritium. This treated water is currently stored in tanks on-site. The total tank storage capacity amounts to about 1.37 million cubic metres. As of 15 July, almost 1.27 million cubic metres of treated water were being held in the storage tanks. All the tanks are expected to be full around the summer of 2022.

In April, the Japanese government announced its formal decision that the treated water stored at the Fukushima Daiichi site will be discharged into the sea. The basic policy calls for the ALPS-treated water to be discharged "on the condition that full compliance with the laws and regulations is observed, and measures to minimise adverse impacts on reputation are thoroughly implemented".

Japan intends to start releasing the treated water in early 2023, and the entire operation could last for decades.

Tokyo Electric Power Company yesterday announced plans to rear fish, shellfish and seaweed in seawater containing ALPS-treated water. The test is aimed at aimed at easing safety concerns about the release of the water into the sea.

Information will be gathered on the occurrence of health-related abnormalities, as well as the hatching rate of eggs and the survival rate of matured fish. A comparison will also be made of the concentration of radioactive materials, including tritium, in the water used for the trial and the subjects' bodies.

The test is due to begin in the second quarter of 2022. "Rearing is planned to be continued for a while after discharge has been initiated," the company said.

Reptilian receptors


Meanwhile, a study from the University of Georgia (UGA) has shown that radioactive contamination around the Fukushima plant can be measured through tracking snakes. Rat snakes, it says, travel short distances and can accumulate high levels of radionuclides, making them an effective bioindicator of residual radioactivity.

According to the researchers, the snakes' limited movement and close contact with contaminated soil are key factors in their ability to reflect the varying levels of contamination in the area. Tracked snakes were found to move an average of just 65 metres per day.

The team tracked nine rat snakes using a combination of GPS transmitters and manual very-high frequency tracking. The researchers identified 1718 locations of the snakes while tracking them for over a month in the Abukuma Highlands, approximately 15 miles northwest of the Fukushima Daiichi plant.

The new study's findings reinforce the team's previous study published in 2020, which indicated the levels of radiocaesium in the snakes had a high correlation to the levels of radiation in the soil where the snakes were captured.

"Snakes are good indicators of environmental contamination because they spend a lot of time in and on soil," said James Beasley, associate professor at of UGA's Savannah River Ecology Laboratory (SERL) and the Warnell School of Forestry and Natural Resources. "They have small home ranges and are major predators in most ecosystems, and they’re often relatively long-lived species."

"Our results indicate that animal behaviour has a large impact on radiation exposure and contaminant accumulation," said Hanna Gerke, an alumna of SERL and Warnell. "Studying how specific animals use contaminated landscapes helps increase our understanding of the environmental impacts of huge nuclear accidents such as Fukushima and Chernobyl."

Researched and written by World Nuclear News

 

Scientists researching strange appearance of Arctic salmon asking fishers to send in their catches

Salmon in the Arctic have increased a lot since 2016, says researcher

Atlantic salmon found in the North. The Arctic Salmon Project has been documenting unusual fish caught by community-based harvesters. (Derwin Parr)

Scientists looking at salmon found in Arctic waters are still asking northern harvesters and fishers to submit any unusual catches in exchange for compensation.

It's part of the Arctic Salmon Project, which is a collaborative effort involving Fisheries and Oceans Canada, scientists from the South and local hunters and trappers organizations. 

The idea of the project, said Darcy McNicholl, a biologist with the fisheries and oceans department, is to document the unusual fish being caught by community-based harvesters.

"We encourage fishermen who catch something that they've never seen before to turn it in for a gift cards so that we can dissect it and answer questions that the communities might have," McNicholl said.

That could include questions about what they're eating, where they're coming from and whether they carry diseases. 

Salmon can be a good indicator of change in the Canadian Arctic, McNicholl said.

Fisheries and Oceans Canada has been studying salmon populations in the Arctic since 2000, and collects samples every year as part of the Arctic Salmon Project. In 2019, 2,400 salmon were submitted to the department. The year before, less than 100 salmon were collected.

Darcy McNicholl is a biologist with Fisheries and Oceans Canada. (Submitted by Darcy McNicholl)

McNicholl said prior to 2016, on average there would be maybe a couple 100 each year.

But the work of a masters student doing traditional knowledge work in the N.W.T. suggests there were large numbers of salmon around the 1960s, she said. 

"So, salmon harvest has been occurring in the Northwest Territories before."

Warmer waters

Salmon have been around the Arctic for a number of years but the number has increased a lot since 2016, and 2019 was a busy year, said McNicholl. She said it could be partly because of the rising temperature of water in the South.

"It's pushing salmon into cooler waters, where their eggs can rear, and they can tolerate the cooler temperatures," she explained. "Or they could be following their food, or both."

In any case, McNicholl said the increase in salmon in the last several years is new and scientists are still working out what exactly is driving salmon up North.

As part of the project, locals in various communities — like Ooloosie Aningmiuk and her husband in Kinngait, Nunavut — were trained to collect and receive salmon in various communities. The pair has been helping the department for the past two years.

Aningmiuk said they help monitor the fish that are caught, and the temperature and salt level of the water.

"Being Inuit, we would like to know what we eat, what the water condition is, what the food is like," she said.

"We would like to know how the food is, if they are evolving, or if there are new species."

'Unusual' fish appearances

McNicholl said salmon might not be the only creatures making their way North.

Once, one of the project's conservationists reported this sighting of a salmon shark — normally only found in Alaska — in Kuglutuk, Nunavut.

"That was very unusual," McNicholl said. "Somehow this one made it all the way into western Nunavut." 

She added that pink salmon are expanding in all directions across the Canadian North.

McNicholl said the work to learn more about fish species in the Arctic is important because sometimes they aren't new — they just haven't often been spotted.

"We're still learning all the different species that occur, and some of them are really rare," she said.

"It's important for us to work with the communities to find out, you know, is this brand new to the Arctic? Or is this just a rare species that isn't often found? Because it's an important distinction to make."

Indigenous Australians

Rio Tinto’s alleged underpayment of traditional owners of WA mine area sparks calls for widespread review


Pat Dodson says power imbalance between mining companies and Indigenous communities in Australia should be addressed


The alleged underpayment by Rio Tinto concerns a 1997 agreement over the Yandicoogina iron ore mine in Western Australia. 
Photograph: Christian Sprogoe/AFP/Getty Images


Calla Wahlquist
@callapilla
Mon 2 Aug 2021

Senator Pat Dodson has called for a widespread audit of Indigenous land use agreements after traditional owners in the Pilbara found they may have been underpaid by as much as $400m by the mining giant Rio Tinto.

The alleged underpayment concerns a 1997 agreement over the Yandicoogina mine near Newman in Western Australia. Rio Tinto wrote to traditional owners, the Gumala Aboriginal Corporation (GAC), last July informing them it had identified an underpayment issue dating back several years, enclosing a $40m cheque.

The GAC requested a forensic audit, which was delivered last week. According to The Australian, it identified that Rio may have underpaid GAC by as much as $400m over the life of the agreement.

The agreement provided compensation for ground disturbance at the iron ore mine, not a simple royalty payment. The disagreement reportedly centres on Rio’s historically narrow interpretation of what is meant by ground disturbance.


No more welcome to country for Rio Tinto, Indigenous owners say

Rio confirmed it received the audit report last week and said it was in “ongoing talks with Gumala Aboriginal Corporation in an effort to resolve this issue, related to historical payment for infrastructure ground disturbance”.

Dodson said the federal government should properly resource traditional owners and Aboriginal corporations to allow them to detect underpayments.

“It is disconcerting that this incredible underpayment was only discovered as a result of an audit that was prompted by the traditional owners,” he said.

“In light of this, and due to the power imbalance between mining companies and traditional owners, doubt is cast over similar such royalties arrangements, and it’s time for us to consider the need for audits of arrangements across the board.

“The Commonwealth should work with Traditional Owners and their representative corporate bodies to support them to scrutinise such arrangements and detect underpayments.”

Labor senator Pat Dodson says there is a power imbalance between mining companies and traditional owners. Photograph: Mick Tsikas/AAP

The power imbalance between traditional owners and the mining companies with which they have signed partnership agreements is one of the issues being examined by the parliamentary inquiry into the destruction of Juukan Gorge.

Nationals senator Matt Canavan, who sits on that inquiry, also called for the prescribed body corporates that represent native title holders in agreements with industry to be better resourced.

“It’s one thing to pass native title laws but it’s another to make sure that they empower Aboriginal groups to take advantage of a new property right,” Canavan told Guardian Australia.


WA must toughen laws after revelation Rio Tinto dumped priceless Indigenous artefacts, heritage expert says


“A lack of resources to help native title groups, traditional owners, establish native title and and then, as claimants, use their native title for their best interest is something that’s handicapped the full promise of native title rights for decades.”

Canavan said there was “probably a case to look at further resourcing” from the Commonwealth government.

Traditional owners groups are required under the Native Title Act to establish a prescribed body corporate (PBC) to manage and protect the rights and interests of native title holders.

The federal government provides some funding, including a grant program intended to help build the capacity of PBCs, but the bulk of funding comes from compensation agreements struck with the mining industry or other industries that want to use native title land.

Jamie Lowe, a Gundjitmara Djabwurrung man and chief executive of the National Native Title Council, said federal and state governments have heaped regulatory burdens on PBCs without providing adequate resources.

“There’s a huge cultural responsibility, let alone a statutory responsibility under the act,” Lowe said. “So you put those two together, and then you give them zero money, there’s going to be issues bound to happen.

“If that’s not a recipe for disaster I don’t know what it is.”

The regulatory obligations are particularly onerous in the Pilbara, where new developments continually trigger new statutory responsibilities. Lowe said they would become even more difficult if the Western Australian government passes proposed new cultural heritage laws which will rely on the PBCs to take on more work.

“When someone wants to do some activity up the road there, the PBC is not even resourced to employ a person to take a phone call,” Lowe said.

“They say, ‘oh these mob, they don’t know how to govern’ – we put it all on the mob and it’s not on the mob at all. It’s on the operating environment and the legislation that they’re trying to deal with.”
Survey finds Ontario and Quebec residents agree: Revive Energy East if Line 5 is shut down

Many Line 5 supporters in Michigan say they will be significantly impacted personally if pipeline shuts down: Survey

Author of the article: Yadullah Hussain
Publishing date:Jul 27, 2021 • 
A signpost marks the presence of Enbridge's Line 5 pipeline, which Michigan Governor Gretchen Whitmer ordered shut down by May 12. 
PHOTO BY REUTERS/CARLOS OSORIO/FILE PHOTO

Residents of the state of Michigan and the province of Ontario believe Enbridge Inc.’s Line 5 pipeline should remain open, but Quebec residents are evenly split on the issue, according to a new survey.

The controversial pipeline which ships oil mostly from Alberta to markets in Ontario, Quebec and U.S. MidWest has been in the crosshairs of the Michigan government.

Gretchen Whitmer, the state’s governor, issued a shutdown order for the pipeline in May over concerns of a potential spill into the Straits of Mackinac, where the pipeline runs underwater. The two parties are currently in mediation, which is expected to wrap up in August.

New data from the non-profit Angus Reid Institute finds nearly half of respondents in Michigan (48 per cent) and Ontario (49 per cent) want the pipeline to remain open, while a quarter in Michigan and nearly three-in-10 in Ontario want it shut down.

In Quebec, the 72 per cent who have an opinion are evenly split on what the pipeline’s fate should be.

Angus Reid surveyed more than 2,200 people across Michigan, Ontario and Quebec in mid-June, although the sample size for Michigan of 427 was relatively small compared to the two provinces.

While two-thirds of those in Michigan are concerned about a leak from Line 5, half believe a tunnel proposed by Enbridge will address the concerns.

Of the state’s residents who are engaged with the issue, more than a quarter (27 per cent) said they had read or seen stories about the issue or discussed it with family and friends, while another 25 per cent had briefly discussed it or read a story or two.

A majority of Ontarians are also following the issue, with 52 per cent claiming that they had read, if briefly, about Line 5. Only 34 per cent of Quebecers claimed to have been that engaged on the subject.

While Michigan residents largely approve of Governor Whitmer’s leadership, they don’t necessarily agree with one of her signature campaign promises: shutting down Line 5. Nearly half of Michiganders want to keep it open, while even those who approve of Whitmer are split on the pipeline’s fate, the survey noted.

“The potential economic impacts, both regionally and personally, are a key concern for those who want the pipeline to stay open. A majority of the pipeline’s supporters in Michigan (65 per cent), Ontario (65 per cent), and Quebec (55 per cent) believe they will be personally impacted either ‘significantly’ or ‘massively’ if Line 5 shuts down,” according to the Angus Reid survey released this morning.

Remarkably, the dispute over Line 5 also appears to have revived support for a west-to-east Canadian pipeline that was scrapped in 2017.

Three quarters of Ontarians (76 per cent), and three-in-five Quebecers (58 per cent), believe TC Energy Corp.’s (then known as TransCanada Corp.) long-since-cancelled Energy East project should be reconsidered if Michigan turns off the tap on Line 5.

Quebecers’ approval of Energy East is a surprise given that the province was vehemently opposed to the project when it was proposed in 2013.

“Even if Line 5 survives Whitmer’s campaign against it, many in Ontario and Quebec want Energy East to be reconsidered regardless,” according to the survey.

“Two-thirds of those in Ontario (65 per cent) and half of those in Quebec think Energy East should be reconsidered even if the contested Michigan pipeline remains open,” the survey noted.

But Energy East advocates shouldn’t get too excited. Even in 2016, just a year before opposition to the project in the province reached a crescendo, 48 per cent of Quebecers were in favour of the Energy East pipeline — but the development was still cancelled due to staunch opposition from the Quebec government and local groups.

It’s also unclear whether TC Energy has the risk appetite to pursue a cross-country project that has already been cancelled once.
RIGHT TO ARM BEARS
Polar bears sometimes bludgeon walruses to death with stones or ice

It’s long been said that a piece of ice is the perfect murder weapon


In this illustration, which appears in an 1865 book by adventurer Charles Francis Hall, a polar bear uses a rock as a tool to kill a walrus. Some have thought that Inuit reports of this behavior were just stories, but new research suggests not.
CHARLES FRANCIS HALL, LIBRARY OF CONGRESS


By Gloria Dickie
JULY 29, 2021

Walruses, weighing as much as 1,300 kilograms with huge tusks and nearly impenetrable skulls, are almost impossible for a hungry polar bear to kill. But new research suggests that some polar bears have invented a work-around — bashing walruses on the head with a block of stone or ice.

For more than 200 years, Inuit in Greenland and the eastern Canadian Arctic have told stories of polar bears (Ursus maritimus) using such tools to aid in killing walruses. Yet explorers, naturalists and writers often dismissed such accounts, relegating them to myth along with tales about shape-shifting bears.

The persistence of these reports, including one report from an Inuk hunter in the late 1990s, coupled with photos of a male polar bear named GoGo at a Japanese zoo using tools to obtain suspended meat compelled Ian Stirling and colleagues to investigate further.

“It’s been my general observation that if an experienced Inuit hunter tells you that he’s seen something, it’s worth listening to and very likely to be correct,” says Stirling, one of the world’s leading polar bear biologists

The researchers reviewed historical, secondhand observations of tool use in polar bears reported by Inuit hunters to explorers and naturalists as well as recent observations by Inuit hunters and non-Inuit researchers and documented observations of GoGo and brown bears — polar bears’ closest relatives — using tools in captivity to access food. This review suggests that tool use in wild polar bears, though infrequent, does occur in the case of hunting walruses because of their large size, the researchers report in the June Arctic.

“Really, the only species you would want to bonk on the head with a piece of ice would be a walrus,” says Andrew Derocher, director of the Polar Bear Science Lab at the University of Alberta in Edmonton, Canada, who wasn’t involved with the new study. He suspects that it might just be a few polar bears that do this behavior. For example, if a mother bear figured out how to use ice or stone in this way, “it’s something her offspring would pick up on,” but not necessarily a skill polar bears across the Arctic would acquire, he says.

Among animals, using tools to solve problems has long been regarded as a marker of a higher level of what humans consider intelligence. Notoriously smart chimpanzees, for example, craft spears to hunt smaller mammals (SN: 2/28/07). Dolphins carry marine sponges in their mouths to stir sand and uncover prey (SN: 6/8/05). And elephants have been known to drop logs or large rocks onto electric fences to cut off the power supply.

Studies on the cognitive abilities of polar bears are lacking. “We don’t know anything experimental or objective at all,” Stirling says. “However, we have a great deal of observational information that tends to suggest polar bears are really smart.”

Members of the bear family, Ursidae, are typically assumed to have strong cognitive skills as a result of their large brains and evidenced by their sophisticated hunting strategies. Studies on captive American black bears have even revealed some mental capabilities that appear to exceed those of primates.

This sculpture in the Itsanitaq Museum in Churchill, Canada shows a polar bear lifting a block of ice above the head of a sleeping walrus.
GLORIA DICKIE

Gabriel Nirlungayuk, an Inuk hunter of Rankin Inlet in Nunavut, Canada, says he has heard such stories of polar bears using tools to hunt walruses. “I’ve seen polar bears since I was probably 7 years old. I’ve been around them, I’ve hunted alongside them, and I have seen their behaviors. The smartest hunters are usually the female bears.” Sometimes, he says, polar bears will trick young seals to come closer by pretending to be asleep in open water. Other times he’s observed that a polar bear can sniff out a seal’s breathing hole in ice, even if it’s obscured by snow.

“I have worked with the Inuit on traditional knowledge for a very long time and one of my favorite subjects is polar bears, because science often suggests one thing and the Inuit say another thing,” he notes.

There are around 26,000 wild polar bears living in 19 subpopulations across the Arctic and sub-Arctic. The bears primarily eat seals, hunting the marine mammals by staking out above their breathing holes. Because of climate change, Arctic sea ice is fast disappearing, and scientists predict that many polar bear populations will be extinct by the century’s end. Desperate polar bears may increasingly attack walruses, but “there are limitations to how many walruses an adult bear can take down,” says coauthor Kristin Laidre, an Arctic ecologist at the University of Washington in Seattle. It takes a lot of energy.

Following publication of the new study, Stirling received a video from U.S. Geological Survey scientist Anthony Pagano, based in Anchorage, Alaska, who had previously attached a GoPro camera to a wild polar bear for a separate project. That footage, Stirling says, shows a female polar bear sliding a large block of ice around before throwing it into the water at a seal.






A hammerhead shark baby boom near Florida hints at a historic nursery

The nursery of endangered sharks would be the first known in U.S. Atlantic waters


A researcher releases a tagged baby great hammerhead shark into the water just off the coast of Miami. At least nine baby hammerhead sharks have been found in the area, hinting at a possible nursery. JULIA WESTER/FIELD SCHOOL

By Lesley Evans Ogden
17 HOURS AGO

It seems like an unlikely place for a nursery of endangered hammerhead sharks, but a recreational hot spot just off the coast of Miami may host a school of these precious babies. If confirmed, the nursery would be the first ever identified in U.S. Atlantic waters for this iconic shark species.

Finding an endangered shark nursery in a vast ocean is like finding a needle in a haystack. While scientists have used satellites to track migrations of adult great hammerheads (Sphyrna mokarran), where the sharks breed and give birth and where babies grow up is still “a bit of a mystery,” says shark scientist Catherine Macdonald of the University of Miami.

Macdonald investigates where and how sharks can thrive in areas that are heavily impacted by humans. One of those areas is Florida’s Biscayne Bay, a popular spot for fishing and boating that is polluted by urban runoff. There, she and colleagues regularly survey shark abundance and diversity using a catch-and-release system: Sharks that get hooked on baited lines are reeled in, documented, tagged and put back into the water.

Discovering a potential hammerhead shark nursery was an accident. The team got its first inkling of something special in June 2018, when researchers caught a juvenile great hammerhead — an interesting anomaly. In a decade of surveying, the team had never captured a hammerhead in these waters, says David Shiffman, a marine biologist at Arizona State University who is based in Washington, D.C. Several months later, the team caught another young hammerhead.

Over the next year and a half, “we kept catching them … every few months,” Macdonald says. So far, the team has documented nine baby great hammerheads, Macdonald, Shiffman and colleagues report July 11 in Conservation Science and Practice. Based on the sharks’ sizes — all under 200 centimeters long — they were less than 5 years old. The area where the young sharks have been found is fairly shallow and carpeted with seagrass, which probably provides protection and is rife with small fish to eat, the researchers suspect.

Researchers on a boat in Florida’s Biscayne Bay measure a live juvenile great hammerhead shark before releasing it back into the water. FIELD SCHOOL

Though the Biscayne Bay site seems to be experiencing a hammerhead shark baby boom, officially designating the area as a nursery will require more monitoring. Juvenile sharks are more common at the site than other areas surveyed and the sharks come back to it for multiple years, the team says. But it’s unknown whether the sharks reside at the site for extended periods of weeks or months — the third and final criteria for the site to qualify as a nursery.

Great hammerhead sharks breed infrequently, about once every two years. And the rate at which people catch and kill the sharks — both accidentally and intentionally (SN: 12/1/09) — contributed to the International Union for the Conservation of Nature listing the species as critically endangered in 2019. So when nursery areas are discovered, “it’s important they remain safe,” says marine biologist Jasmin Graham, President and CEO of Minorities in Shark Sciences, an organization that promotes diversity and inclusion in marine science. And while adult sharks have few predators other than people, “there’s a super high mortality rate for juveniles.” With an already unstable population, as many juveniles as possible that can survive to reproductive age is crucial, Graham says.

The possibility of an endangered shark nursery in Biscayne Bay fills Macdonald with hope, and she is working with conservation partners to get legal protections for this important site (SN: 9/17/15). “Even in such a heavily impacted place, it is possible for nature to be thriving,” she says.
Greece’s Santorini volcano erupts more often when sea level drops

Lower sea levels over the last 360,000 years are linked with more eruptions


Sea level seems to influence eruptions from the partially-submerged volcano of Santorini in Greece (pictured). Lower sea levels are historically linked to more eruptions.
NASA EARTH OBSERVATORY


By Maria Temming
14 HOURS AGO


When sea level drops far below the present-day level, the island volcano Santorini in Greece gets ready to rumble.

A comparison of the activity of the volcano, which is now partially collapsed, with sea levels over the last 360,000 years reveals that when the sea level dips more than 40 meters below the present-day level, it triggers a fit of eruptions. During times of higher sea level, the volcano is quiet, researchers report online August 2 in Nature Geoscience.

Other volcanoes around the globe are probably similarly influenced by sea levels, the researchers say. Most of the world’s volcanic systems are in or near oceans.

“It’s hard to see why a coastal or island volcano would not be affected by sea level,” says Iain Stewart, a geoscientist at the Royal Scientific Society of Jordan in Amman, who was not involved in the work. Accounting for these effects could make volcano hazard forecasting more accurate.

Santorini consists of a ring of islands surrounding the central tip of a volcano poking out of the Aegean Sea. The entire volcano used to be above water, but a violent eruption around 1600 B.C. caused the volcano to cave in partially, forming a lagoon. That particular eruption is famous for potentially dooming the Minoan civilization and inspiring the legend of the lost city of Atlantis (SN: 2/1/12).

To investigate how sea level might influence the volcano, researchers created a computer simulation of Santorini’s magma chamber, which sits about four kilometers beneath the surface of the volcano. In the simulation, when the sea level dropped at least 40 meters below the present-day level, the crust above the magma chamber splintered. “That gives an opportunity for the magma that’s stored under the volcano to move up through these fractures and make its way to the surface,” says study coauthor Christopher Satow, a physical geographer at Oxford Brookes University in England.

According to the simulation, it should take about 13,000 years for those cracks to reach the surface and awaken the volcano. After the water rises again, it should take about 11,000 years for the cracks to close and eruptions to stop.

When the sea drops at least 40 meters below the present-day level, the crust beneath the Santorini volcano (illustrated) starts to crack. As the sea level drops even further over thousands of years, those cracks spread to the surface, bringing up magma that feeds volcanic eruptions.
OXFORD BROOKES UNIVERSITY

It may seem counterintuitive that lowering the amount of water atop the magma chamber would cause the crust to splinter. Satow compares the scenario to wrapping your hands around an inflated balloon, where the rubber is Earth’s crust and your hands’ inward pressure is the weight of the ocean. As someone else pumps air into the balloon — like magma building up under Earth’s crust — the pressure of your hands helps prevent the balloon from popping. “As soon as you start to release the pressure with your hands, [like] taking the sea level down, the balloon starts to expand,” Satow says, and ultimately the balloon breaks.

Satow’s team tested the predictions of the simulation by comparing the Santorini Volcano’s eruption history — preserved in the rock layers of the islands surrounding the central volcano tip — with evidence of past sea levels from marine sediments. All but three of the volcano’s 211 well-dated eruptions in the last 360,000 years happened during periods of low sea level, as the simulation predicted. Such periods of low sea level occurred when more of Earth’s water was locked up in glaciers during ice ages.

“It’s really intriguing and interesting, and perhaps not surprising, given that other studies have shown that volcanoes are sensitive to changes in their stress state,” says Emilie Hooft, a geophysicist at the University of Oregon in Eugene, who wasn’t involved in the work. Volcanoes in Iceland, for instance, have shown an uptick in eruptions after overlying glaciers have melted, relieving the volcanic systems of the weight of the ice.

Volcanoes around the world are likely subject to the effects of sea level, Satow says, though how much probably varies. “Some will be very sensitive to sea level changes, and for others there will be almost no impact at all.” These effects will depend on the depth of the magma chambers feeding into each volcano and the properties of the surrounding crust.

But if sea level controls the activity of any volcano in or near the ocean, at least to an extent, “you’d expect all these volcanoes to be in sync with one another,” Satow says, “which would be incredible.”

As for Santorini, given that the last time sea level was 40 meters below the present-day level was about 11,000 years ago — and sea level is continuing to rise due to climate change — Satow’s team expects the volcano to enter a period of relative quiet right about now (SN: 3/14/12). But two major eruptions in the volcano’s history did happen amid high sea levels, the researchers say, so future violent eruptions aren’t completely off the table.

 

The Hydrogen Hype Is Real, But Is It Justified?

Amid all the hype hydrogen is getting lately as an energy source, the reality is that this fuel faces significant challenges in scaling up in the global energy system.  That’s the lead conclusion of the Innovation Insights Briefing prepared by the London-based World Energy Council (WEC) in collaboration with the Electric Power Research Institute (EPRI) and PwC.  

Hydrogen, especially green hydrogen made of water electrolysis using electricity from solar or wind, has been gaining momentum in recent years. 

Hydrogen now features in nearly every strategy of Big Oil and can be seen in many government plans for industry decarbonization. Hydrogen is expected to play a prominent role in lowering the carbon emissions from energy-intensive industries.   

Currently, countries view hydrogen’s role in the energy transition in very different ways. According to the WEC’s report, existing hydrogen demand scenarios show estimates for future use of the fuel vary between 6 and 25 percent of final worldwide energy consumption by 2050, or between 150 and 600 megatons by 2050, depending on how hydrogen will compete with other clean solutions such as battery storage.  

Despite the fact that many countries are looking at how to develop a ‘hydrogen economy’—by becoming suppliers or charting pathways for hydrogen use in domestic industries—scaling up hydrogen “faces significant challenges,” the report found. 

First and foremost, it’s the cost. 


“Low-carbon hydrogen is currently not cost-competitive with other energy supplies in most applications and locations and is likely to remain so without significant support to bridge the price gap - which raises the question of who should fund this support,” the WEC notes. 

But countries are sending encouraging signals that they are currently willing to help low-carbon hydrogen scale up with direct investments in projects, the report says.

The question is how much and how long of taxpayer support it could take to make low-carbon hydrogen competitive enough to be a viable cost-efficient solution to industry decarbonization. 

Then, the WEC report says, the hydrogen economy is at such an early stage that it faces the “chicken and egg problem” between supply and demand, both lacking secure volumes from the other to help establish the value chain.

Next, the “color debate” about hydrogen, with colors used to denote how hydrogen is being produced, is stifling innovation, according to the report. This “color differentiation” could unnecessarily exclude a viable cost-efficient technology just because one type of hydrogen is currently color-coded as ‘blue’, for example. Blue hydrogen refers to hydrogen made from fossil fuels with carbon capture. 

“The color debate needs clarity as it could risk prematurely excluding some technological routes that could be more cost and carbon-effective. There is an emerging sense that the discussion should perhaps think about moving beyond color and instead focus on carbon equivalence,” the authors of the report wrote. 

“This decade is crucial to develop hydrogen projects along with the infrastructure to produce, transport, import, distribute and use hydrogen at large scale. If we do this successfully over the next few years, it can pave the way for hydrogen demand to grow exponentially beyond 2030,” Jeroen van Hoof, Global Energy, Utilities and Resources Leader, PwC Netherlands, said, commenting on the report. 

The hydrogen economy may be in its very early stages, but companies-including major oil firms and governments are already working to develop projects and bring costs down. 

The biggest oil companies in Europe, including BP, Shell, TotalEnergies, Equinor, Eni, and Repsol, all have ongoing hydrogen projects and plan more for the future. 

Germany said in May that it would fund 62 large-scale hydrogen projects with as much as US$10 billion in federal and state funds as it aims to become the world’s leader in hydrogen technologies.

Even countries in the top oil-producing region in the world, the Middle East, are looking at ways to become hydrogen production and export hubs. Oman, the United Arab Emirates (UAE), and Saudi Arabia are betting on hydrogen for leadership in another energy market apart from oil exports. 

In the United States, Secretary of Energy Jennifer Granholm launched in June the U.S. Department of Energy’s first Energy Earthshots Initiative, Hydrogen Shot, which seeks to reduce the cost of clean hydrogen by 80 percent to $1 per kilogram in one decade. 

“Clean hydrogen is a game-changer. It will help decarbonize high-polluting heavy-duty and industrial sectors while delivering good-paying clean energy jobs and realizing a net-zero economy by 2050,” Secretary Granholm said.  

By Tsvetana Paraskova for Oilprice.com