
‘Yuck factor': eating insects rather than meat to help the planet is failing, study finds
Recent efforts to encourage people to eat insects are doomed to fail because of widespread public disgust at the idea, making it unlikely insects will help people switch from the environmentally ruinous habit of meat consumption, a new study has found.
Farming and eating insects has been touted in recent years as a greener alternative to eating traditional meat due to the heavy environmental toll of raising livestock, which is a leading driver of deforestation, responsible for more than half of global water pollution, and may cause more than a third of all greenhouse gases that can be allowed if the world is to avoid disastrous climate change, the new research finds.
Despite this, the much lighter planetary cost of breeding and eating insects such as crickets, grasshoppers and ants is unlikely to be realized because people, particularly in western countries, remain repulsed at the idea of eating them, the researchers found.
Public polling in the US and Europe has found that while as many as 91% of respondents would be willing to try plant-based 'alternative meats', only about 20% would consider eating insects.
As well as a cultural 'yuck' factor, there are also economic barriers, the paper found, with most companies – the exception being a few protein bar startups – deciding to focus on raising species such as black soldier flies for animal, rather than human, consumption.
'Given these challenges, it is difficult to see how insect-based foods could significantly replace traditional meat options,' the paper, published in the Nature journal npj Sustainable Agriculture, states.
While many people express a desire to eat food that is raised sustainably, relatively few in western countries have embraced vegetarianism and veganism. Meanwhile, global meat consumption is expected to increase in the coming decades amid rising demand from a newly wealthy cohort in countries such as China, placing additional stresses upon the land, waterways and the climate.
'We have limited resources and we need to devote them to the most promising alternatives,' said Dustin Crummett, the co-author of the study and executive director of the Insect Institute. 'It turns out that farmed insects consistently score the lowest of any of the meat substitutes and the actual market for them is incredibly small, even in places that have a tradition of eating insects.'
Crummett said that while some efforts have been made to put insects into items such as snack bars and bread, they aren't being made into products that would actually dislodge meat consumption.
'All the talk about eating insects has not made a big difference. People still have a strong adverse reaction to insects and there is no cultural history of that,' he said. 'Changing longstanding culinary traditions and deep-seated disgust reactions is hard to do from the top down. If it were easy, more people would be eating plant-based foods.'
Few governments have made any significant moves to curb meat consumption, despite its enormous impact upon the environment, fearing political backlash. Denmark, however, has provided a possible model of how to do this, unveiling a plan in 2023 to reduce meat eating and bolster the supply of plant-based foods.
'Plant-based foods are the future,' Jacob Jensen, Denmark's minister for food, agriculture and fisheries, said at the time. 'If we want to reduce the climate footprint within the agricultural sector, then we all have to eat more plant-based foods.'
Crummett said that the Danish plan was a good starting point to craft an alternative to simply hoping that people will switch to insects.
'You have to meet people where they are,' he said. 'You need to make things easy and tasty, not just moralize and hector people. Once there are alternative products that are better based on taste, price and convenience, we will get some traction in reducing the impact of livestock.'

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National Observer
11 hours ago
- National Observer
AI observers hit the high seas
This story was originally published by bioGraphic and appears here as part of the Climate Desk collaboration Accurately monitoring a fishery — knowing how many and which fish species are being caught, and what misfortunate creatures are being dragged in as bycatch along the way — has never been easy. Around the world, the job of keeping tabs on fishers has typically fallen to people called fisheries observers who temporarily join a fishing crew to watch and record. There to take scientific observations and report any rule breaking, these independent monitors often have a difficult and dangerous job. Harassment and unsafe working conditions are common, and violence can be rife. Every year since 2009, at least one fisheries observer has gone missing at sea. In other words, relying on onboard human observers is a notoriously imperfect way to regulate fishing activity. Slightly easier and cheaper, and decidedly much safer, is fitting fishing vessels with cameras that record their catches. But even video review is costly and time-consuming. A single fishing trip can generate hundreds of hours of video footage that someone still has to comb through to identify and count the animals flying past the camera. For small-scale fishers, like those involving Indigenous communities on the west coast of Canada, video monitoring and review can be even more of a burden. Though monitoring is essential for managing fish stocks, the Canadian government's fisheries monitoring system was designed with large, commercial, single-species fishers in mind, says Lauren Dean, a communications specialist for the Ha'oom Fisheries Society, an Indigenous organization representing five First Nations near Tofino, British Columbia. Unlike regular commercial fishers, however, Ha'oom's fishers often embark on relatively modest expeditions targeting several species at once. In the Canadian government's view, each species targeted counts as a different commercial with its own legal monitoring requirements. 'Dealing with five or six different systems for monitoring is simply not viable economically,' Dean says. In recent years, though, a solution has emerged to make fisheries monitoring more accessible, more efficient and safer: artificial intelligence. As machine learning, image recognition and other forms of artificial intelligence grow ever more potent, a startup based in Vancouver and called OnDeck AI is developing a computerized fisheries monitoring system that could radically change the video review process for Ha'oom's fishers and others. Though the system is still in the design and testing stages, OnDeck AI hopes to one day be able to automatically detect and count fish in video footage, streamlining the monitoring process. It has big implications for everything from fisheries management and conservation to Indigenous nations' access to data about their waters and resources. Relying on onboard human observers is a notoriously imperfect way to regulate fishing activity, which is why some are trying to develop artificial intelligence that can aid in the completion of the task — or do it without the need for humans. OnDeck AI is the brainchild of Alexander Dungate, who grew up recreationally catching prawns, crab and sole with his family on the BC coast. In 2021, while studying computer science and biology at the University of British Columbia (UBC), he learned about the world of fisheries monitoring — including the hazardous, sometimes lethal situations faced by independent monitors. He also learned that the archive of fisheries catch footage that has already been amassed is so massive that fully analyzing all of it is nearly impossible. Across the border in the United States, for instance, the Pacific States Marine Fisheries Commission, which helps regulate fisheries in California, Oregon, Washington, Idaho and Alaska, has a year-and-a-half worth of video piled up awaiting review. Dungate reached out to friend and fellow UBC student Sepand Dyanatkar, who was studying machine learning, a branch of AI that focuses on developing algorithms that can learn to analyze data without explicit programming. Building on an AI concept called 'master object tracking,' the pair developed a computer program capable of visually identifying an object — in this case a fish — as it moves through a video. Previous efforts to use AI to audit fisheries catch footage have typically run into the same two types of challenges. One is the generalizability problem. Whether it's turbulent weather, bad lighting, waves and spray splashing the camera or the boat itself getting tossed around in a storm, the qualities of videos captured at sea are highly variable, making analysis difficult. Problem two is the data problem. It takes a significant amount of time and effort to annotate the images and videos needed to train an AI model to pick an individual fish out of an endless barrage of footage, let alone recognize the species. What's more, training a typical AI system to recognize all the rare species — which are often the most important given their ecological significance — is simply not possible, says Dungate, since there just isn't enough footage to work from. For instance, if a killer whale accidentally gets caught in a fisher's net, 'we really need to be able to recognize that. But there's maybe three photos on Earth of that happening,' Dungate says. OnDeck AI sidesteps those issues by designing their system to bypass the need for labeled training data by giving the model the ability to recognize what it's seeing across any setting, including with footage of varying quality captured by different types of cameras in changing weather. Dungate likens the difference between traditional AI models and OnDeck AI's to the difference between memorizing the answers to a test and using more complex reasoning to figure out the answers. In other words, it's being able to identify a fish based on its coloring, shape, and fin structure — even if the system has never seen it before. That's the long-term objective, at least. But for now, OnDeck AI's model needs more priming. So last summer, the company trained its AI system on Ha'oom's video footage. To do that, Jessica Edwards, a Ha'oom biologist, analyzed catch footage alongside the AI. If the model failed to recognize a particular fish in the video feed, Edwards would draw a box around the overlooked animal to teach the algorithm. The goal, Edwards says, is to get the AI system to do as good a job as a human — or better — but in less time. Even before getting to that point, the AI can help an auditor do their job faster by identifying when a fish appears in the footage, allowing them to skip forward to relevant segments of the video rather than having to go through the whole feed. While OnDeck's AI system still needs more tuning, scientists and engineers elsewhere are also trying to crack the AI fisheries observer problem. Some, like a team in Australia, are developing an AI system capable of distinguishing between 12 different species in video footage. Working with the Australian longline tuna and billfish fishers, their system picks the right species roughly 90 per cent of the time. Bubba Cook, the policy director for Sharks Pacific, a New Zealand-based NGO, believes AI-driven monitoring could dramatically increase how much of the world's oceans are under some sort of surveillance. Only a small fraction of the world's fisheries — roughly two per cent — are currently monitored by observers, meaning the vast majority of fishing activity, including the bycatch of protected species, happens without oversight. Though human observers will still be necessary for things like tissue sampling, 'the reality is,' says Cook, that 'electronic monitoring coupled with AI review is the only way we're going to get the level of observer coverage we need.'


Winnipeg Free Press
2 days ago
- Winnipeg Free Press
A submersible finds sea creatures thriving in the deepest parts of the ocean
NEW YORK (AP) — An underwater voyage has revealed a network of creatures thriving at the bottom of deep-sea ocean trenches. In these extreme environments, the crushing pressure, scant food and lack of sunlight can make it hard to survive. Scientists know that tiny microbes prosper there, but less is known about evidence of larger marine life. Researchers traveling along the Kuril–Kamchatka and Aleutian trenches in the northwest Pacific Ocean used a submersible to find tubeworms and mollusks flourishing at over 31,000 feet (9.5 kilometers) deep. The deepest part of the ocean goes down to about 36,000 feet (11 kilometers). Scientists had surveyed this area before and had hints that larger creatures might live at such depths. The new discovery confirms those suspicions and shows just how extensive the communities are, said Julie Huber, a deep sea microbiologist with Woods Hole Oceanographic Institution. 'Look how many there are, look how deep they are,' said Huber, who was not involved with the research. 'They don't all look the same and they're in a place that we haven't had good access to before.' The findings were published Wednesday in the journal Nature. In the absence of light to make their own food, many trench-dwellers big and small survive on key elements like carbon that trickle down from higher in the ocean. Scientists think microbes in this new network may instead be capitalizing on carbon that's accumulated in the trench over time, processing it to create chemicals that seep through cracks in the ocean floor. The tubeworms and mollusks may survive by eating those tiny creatures or living with them and snacking on the products of their labor, scientists said. With this discovery, future studies will focus on how these deep-sea creatures adapted to survive in such extreme conditions and how exactly they harness chemical reactions for food, study authors Mengran Du with the Chinese Academy of Sciences and Vladimir Mordukhovich with the Russian Academy of Sciences said in a statement. Their existence challenges 'long-standing assumptions about life's potential at extreme depths,' the authors said. ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Department of Science Education and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

CBC
4 days ago
- CBC
Like taking nature pics? The national week-long scavenger hunt for biodiversity is for you
From backyard bird sightings to interesting plants and curious mushrooms on the hiking trail, everyday nature encounters can be recorded and photographed to be added to a national biodiversity database. Londoners are invited to join the Big Backyard BioBlitz, a Canada-wide citizen science event organized by the Nature Conservancy of Canada (NCC), which returns for its fifth year from July 28 to August 4. The week-long initiative invites people of all ages to snap photos or make audio recordings of the birds, animals, plants, fungi and even invasive species they come across, and upload them using the free iNaturalist app. "It's open to everyone," said Sarah Meyer, co-ordinator of conservation biology at the NCC, on CBC London Morning. "Whether you're in your backyard, walking through a city park, or camping in the backwoods, your observations help shape our understanding of local ecosystems." The BioBlitz is more than a fun outdoor activity, it's a crowdsourced scientific effort. Last year, participants submitted more than 47,000 observations, including nearly 22,000 in Ontario alone. Since it started, the event has helped document over 8,600 species, including rare and endangered ones. "It's about getting more eyes on the ground," Meyer says. "We can't be everywhere at once, but this gives us a snapshot of what's blooming, what's migrating, and even when invasive species are starting to spread." Armed with a smartphone, tablet or digital camera, participants can upload what they see and hear to iNaturalist, which helps identify species and makes the data accessible to researchers. The information gathered will help inform everything from conservation planning to habitat protection. New this year, the BioBlitz has been extended from a long weekend to a full week, giving families more time to get involved, including over the August holiday. To help engage younger naturalists, the NCC has created printable activities available online, including scavenger hunt bingo, word searches, and colouring pages. "It's amazing what kids can spot," Meyer said. "Sometimes they're the first to see something we'd completely miss. This is a chance for them to be scientists, too." Meyer said the BioBlitz also serves a larger purpose, especially as biodiversity faces growing threats from climate change and habitat loss. "Every single observation adds to our knowledge," she said. "It might just feel like you're taking a photo of a milkweed or a beetle, but collectively, that data helps scientists make real conservation decisions."