Saturday, May 31, 2025

Polaris of Enlightenment

Europeans choose animal welfare over “climate concerns”

Published 30 October 2023
– By Editorial Staff

Consumers in Germany, Denmark, and the United Kingdom place a higher value on animal welfare than on low carbon emissions when it comes to the prices of pork, according to a new study at the University of Copenhagen.

In China, food safety is the highest priority for consumers to accept paying a higher price.

Through a questionnaire, participants from Denmark, Germany, the UK, and China answered questions about sustainability factors in the pork industry. In total, about 1,500 people from each country participated.

Participants were tasked with prioritizing which factors were more important than others in the pork industry, in other words, what they would prefer to pay more for. The factors to choose from were animal welfare, so-called “carbon footprint” (carbon emissions), use of antibiotics, food safety, and protection of rainforests.

In the study, which was published in the scientific journal Livestock Science, it was observed that about 75% of participants from Germany, Denmark, and China would generally pay more for all five factors. In the UK, the figure was 60%.

When participants were asked to choose, they prioritized other factors over lower carbon emissions. In Denmark, China, and the UK, “climate impact” ranked second to last on the list, after protection of rainforests and food safety respectively. In Germany, the carbon aspect was at the bottom of the priority list.

“Not what consumers care most about”

In light of how much climate has occupied public debate in recent years, we were surprised that bringing down the climate footprint was given such a relatively low priority among consumers, says Thomas Bøker Lund at the University of Copenhagen, in a press release.

In Western countries, animal welfare stood at the top of the list of factors consumers would prefer to pay more for. In China, the priority was food safety. The researchers concluded that labeling meat as “climate-friendly” wouldn’t change this.

– The answers clearly demonstrate that focusing solely on climate improvements in pork production is not what consumers care most about when buying pork. They see it as important that pigs have had a good life, and that this is more important than climate-friendly production, says Professor Peter Sandøe.

Researcher: “Climate considerations” clash with animal welfare

Furthermore, the researchers highlight that minimizing carbon emissions can directly conflict with ensuring animal welfare.

– It’s a real dilemma that maximizing climate friendliness may require pushing animals on a number of other fronts. For example, the breeding of sows that give birth to more and more piglets per litter or to keep animals indoors so as to sequester more direct emissions than if they were to roam outdoors. Or to feed pigs finely ground feed, so that nothing goes to waste, but which gives them stomach ulcers, Sandøe points out as examples.

– Conversely, the kinder one is with the animals, the greater the climate impact per kilo of meat, he summarizes.

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Swedes earn money clearing invasive species

Biodiversity

Published 28 May 2025
– By Editorial Staff
Large-leaved lupines are beautiful - but highly invasive.

Through a mobile game, individuals can “play” by heading out into nature, removing invasive plants, and even getting paid for their efforts. This year, seven Swedish municipalities are testing the game.

The Crowdsorsa mobile game has been used in Finland for three consecutive years, where last year it removed invasive plants from 7000 observations. It is also available in Canada.

This year, the municipalities of Hagfors, Örebro, Sunne, Karlsborg, Lilla Edet, Tanum and Falun are trying it out. The idea is that individuals find invasive plants, either via the map in the app or by themselves, remove them and get paid. As proof, they must film before and after clearing.

The total budget for this year in Sweden is SEK 126,000 (€11,600), which individuals can “play” for. At most, you can earn SEK 200 (€18.5) per hour, with the municipality responsible for paying out the reward.

“Fun way to work”

Last year, it was also successfully used in Hagfors and Örebro. In Hagfors, a total of 17 different teams played.

– The players did a great job! We think it’s a fun way to work with invasive alien species and an effective way to reach the public – and especially young people – with knowledge about invasive species, says municipal ecologist Katarina Karlsson in Hagfors municipality to Natursidan.

Invasive species often spread quickly and can displace native species, which in turn can damage the ecosystem. The game starts already in June, where, among other things, large-leaved lupine, Himalayan balsam and Canadian goldenrod will be removed.

Lion population growing in India

Published 25 May 2025
– By Editorial Staff
An Asiatic lion cub waiting for food.

Asian lions have seen a strong resurgence in India in recent years. A new count shows that the population has increased by over 30 percent in just five years.

The number of Asian lions in the state of Gujarat in western India has risen from 674 individuals in 2020 to 891, according to the latest official count (May 10–13, 2025), reports The Independent. This represents an increase of 32 percent.

The lions live mainly in and around Gir National Park – the only area in the world where this subspecies of lion exists in the wild.

The new figure was recently announced by Gujarat Chief Minister Bhupendra Patel.

The number of lions in the state has gradually increased not just because of favorable geography and climate, but due to our government’s consistent and careful approach to wildlife conservation, said Patel.

Growing population

Over the past decade, the population has grown steadily, and lions have now spread to eleven districts in the Saurashtra region of Gujarat, where they can be observed in forests, grasslands, agricultural areas, and even coastal areas.

Of the 891 individuals, 196 are adult males, 330 are adult females, 140 are young adults (sub-adults), and 225 are cubs, according to state government figures.

Gujarat attributes the success to several efforts: regular monitoring, enhanced veterinary care, water and feed resources in the wild, and programs to reduce conflicts between humans and predators.

Drones, sensors, and camera traps are also used in an extensive monitoring network.

Vulnerability remains

Despite the increase, however, the lions remain vulnerable. The species is classified as vulnerable on the international red list, and threats include genetic inbreeding, diseases that can spread rapidly in the densely concentrated population, and fires and floods in the Gir Forest.

Sanjeev Kumar, Chief Secretary for Forest and Environment in Gujarat, explains.

The holding capacity of national park and sanctuaries will be increased by intervention and habitat improvement. There is still scope of increasing the holding capacity and the forest and environment department is working in that direction.

Gujarat has previously opposed proposals to transplant parts of the population to other parts of India, including the state of Madhya Pradesh, which has led to debate within the country’s environmental movement.

Asian lions (Panthera leo persica) are genetically and physically distinct from their African relatives. They are slightly smaller in size, have shorter manes in males, and live in smaller prides.

FACTS: Gir National Park

  • Location: Located in the state of Gujarat, western India
  • Established: 1965 (as a national park; the reserve was established earlier, in 1913)
  • Area: Approximately 1,412 square kilometers (including the national park and adjacent wildlife sanctuary)
  • Purpose: To preserve the last wild population of Asiatic lions (Panthera leo persica)
  • Ecosystem: Dry deciduous forest, savannah, and scrub forest with semi-desert elements
  • Animal species: In addition to Asiatic lions, there are leopards, spotted hyenas, Indian crocodiles (mugger crocodiles), axis deer (chital), sambar deer, and over 300 bird species
  • Threats: Forest fires, drought, genetic inbreeding, disease, and human impact such as habitat loss and conflicts with humans

Antarctic ice levels show recent growth

Published 25 May 2025
– By Editorial Staff
Between 2021 and 2023, the ice mass increased by an average of 108 gigatonnes per year - likely due to increased precipitation.

Antarctica has long been associated with melting ice – but between 2021 and 2023, new research shows unexpected growth.

Using NASA satellite data, researchers from Tongji University in China measured Antarctic ice masses between 2002 and 2023, focusing mainly on four East Antarctic glacier areas – Denman, Moscow, Totten and Vincennes Bay – located in the Wilkes Land-Queen Mary Land area.

Over the period 2002-2010, the ice mass in Antarctica decreased by an average of 74 gigatons per year, the results, presented in Science China Earth Sciences, show. Furthermore, the ice mass decreased further between 2011 and 2020, with the loss reaching 142 gigatons per year. This has contributed to a sharp rise in sea levels.

Despite the significant decrease, the trend reversed dramatically between 2021 and 2023, when the ice mass increased by an average of 108 gigatonnes per year. The main reason is believed to be that the area had high precipitation compared to previous years. This has contributed to an average increase in sea levels of 0.3 millimeters per year.

The researchers emphasize that the increase may be a temporary trend and does not necessarily mean that ice masses will continue to increase.

Chemicals in electronic waste may damage cells

Published 24 May 2025
– By Editorial Staff

Electronic waste contains carcinogens, according to research from Örebro University and others. The chemicals in the waste can cause hormone disruption and inflammation in human cells.

There is still limited research on how plastics and other materials in waste affect health and the environment. Researchers at Linköping University, Örebro University and the RISE research institute have investigated how chemicals from plastic in electronic waste affect human cells. They used the technique of “cell painting”, where different parts of cells were stained with fluorescent markers.

Using advanced microscopy, we can take thousands of images of a cell and compare it to a cell exposed to chemicals from e-waste. We also perform image analysis using CellProfiler software, which detects cellular changes that are too subtle for the human eye, says Andi Alijagic in a press release.

The study, published in Environmental Research, shows that electronic waste contains a mix of hazardous chemicals. The researchers found polyaromatic hydrocarbons (PAHs), organophosphates and phthalates – substances that are already known to have harmful effects on health. PAHs contain carcinogens, for example.

Exposure to these chemicals was found to cause inflammatory reactions in cells, a process that often underlies various diseases. The researchers also noted that the chemicals affected hormone signaling, which can have negative effects on reproductive health in both women and men.

The researchers emphasize that the chemicals must be managed during recycling to prevent their release into the environment.

We throw away huge amounts of electronics every day, and the chemicals could affect human health if they end up in soil and water, says Alijagic.

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