Saturday, May 31, 2025

Polaris of Enlightenment

The “Robin Hood tree” could make it

Published 11 December 2023
– By Editorial Staff
The tree stood in front of the Roman Hadrian's Wall, a UNESCO World Heritage Site.

The so-called Sycamore Gap tree in Northumberland, an iconic British symbol and popular film location, was illegally felled last fall. Now, experts believe the Robin Hood tree may live on through seeds and cuttings.

The area around the Sycamore Gap tree in Northumberland, northern England, has long been important to the British, and in modern times was used for the filming of Robin Hood: Prince of Thieves in 1991, so the tree is sometimes referred to as the Robin Hood tree. Many Britons have chosen to spread their ashes at the tree and it is not uncommon for marriage proposals to be made around the site. The area is also a scenic area for walking, which was highlighted as particularly important to the British during the coronavirus crisis. The tree also stood next to the Roman Hadrian’s Wall, a UNESCO World Heritage Site.

Cut down with a chainsaw

In September this year, it was discovered that someone had illegally cut down the tree, causing widespread public anger. Even the director of the Robin Hood movie, Kevin Reynolds, was outraged by the fallen tree.

– I was just stunned. I mean, I was gutted. Then I was furious, he told BBC.

The tree, a nearly 200-year-old American sycamore, had been cut down with a chainsaw. A 16-year-old boy was quickly arrested for the incident, but later released. Police then focused on three adult males believed to be involved in the attack.

No one has yet been charged with the crime, but suspicions may extend beyond the tree itself. When it fell, it landed on Hadrian’s Wall, which authorities say was damaged.

The community mourned the fallen tree, and many visited the site to explore the possibility of saving it in some way.

Could survive

Experts are now optimistic that the tree can survive through seeds and cuttings. Andy Jasper, the National Trust’s head of gardens and parks, hopes that about 30 percent of the seeds and half of the cuttings will be viable.

– Over the next year, we’ll be doing all we can to nurture the seeds and cuttings, in the hope that some will grow into strong, sturdy saplings, Jasper told NPR.

The National Trust is an organization that works to conserve and protect natural areas and buildings in England, Wales and Northern Ireland. Jasper also believes that there is hope that the trunk can grow back, but that it may take years to know if this is the case.

– As with many things in landscape restoration, we need to be patient and take the time to let nature do its thing, he says.

The public response to the loss of the tree has been “unprecedented,” according to the National Trust. Since it was cut down, some 17 million people have followed news of the tree on its social media channels.

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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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