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The Lead Dan Asma's superbly unsettling debut feature could well be California’s answer to The Blair Witch Project, as it follows a retired professor protagonist heading out into the Cuyamaca mountains and into the bowels of Mount Shasta on the trail of a lost sect. The Event Details Our intrepid academic Devin (Asma) has bitten off more than he can chew, judging by the riverbed of bloodshot veins disfiguring his face and failing mental faculties that have left him unable to drive his car out of the wilderness. Still able to access his past recordings, he jogs his own memories about what led him out there in the first place: ex-wife Kate (Nicole Jones) dropping off old camcorder excerpts of college hangouts with pal Charlie (Keaton Asma), who recently killed himself. The Data Analysis The film features a mix of found-footage, vlogs, Zoom calls, and Facetime, creating a sharp narrative line and nagging suspense. The movie's use of archival multimedia creates a sense of disintegration and malignancy. The Impact Analysis Asma bakes in a palpable sense of disintegration and malignancy into the very fabric of the film; our technological compulsion to constantly record, seek meaning and rewind back towards our origins feels like the real corrupting force here. The Prediction The film 'Tribe' is available on digital platforms from 25 May, and is expected to resonate with fans of unsettling and thought-provoking cinema.

The Cuckoo's Enchanting Song Sheltered from the Irish Sea by the towering white foredunes of Murlough beach, I follow a trail through the heather and scrub. In the distance, the Mourne mountains slip in and out of view, already charred by this year’s wildfires. My attention turns to the season’s happier signs: sand martins chittering overhead; the scratchy cries of a whitethroat deep in the gorse; a meadow pipit stuttering into song flight. And now, the chant that clinches summer’s arrival. Encountering the Cuckoo I follow the cuckoo’s call and find him perched in a stunted sycamore. Through binoculars, I meet his orange eye. As he leans into his song, his jaunty tail and drooping wings make a fin for the long torpedo of his body – the ideal form for a life lived on the move. The Cuckoo's Unique Behavior Despite his hawkish plumage and yellow legs, his bill’s nib betrays that he is no raptor – the cuckoo feeds mainly on invertebrates. Still, he is a source of morbid curiosity for the steady stream of small passerines – pipit, stonechat, linnet, willow warbler – that pass through the twigs to get a good look at him. They sense his threat. The Art of Brood Parasitism In the bird world there are many different kinds of parental care and, depending on the species, either sex, or both, may brood and raise a pair’s young. However, as a brood parasite, the cuckoo takes the “neither” option. This equal opportunity form of parental “selfishness” is a gamble that can be highly productive. The Cuckoo's Reproductive Strategy The female cuckoo “farms” small passerines, like the meadow pipit, by laying up to 20 eggs (one per host nest) across her large territory. If her egg deceives, her chick ejects its “step-siblings” from the nest, so its hapless foster parents devote themselves solely to raising their enormous changeling. Meanwhile, the biological parents skive off back to Africa. A Lasting Fascination Possibly I should feel conflicted about the cuckoo but, as he keeps up the fluting metronome of his song, head bobbing with all the mechanical emphasis of the eponymous clock, I find I’m charmed. Note after note. Year after year. Hatched out of abandonment. Fledged in trust. This story of spring is so well known, but that doesn’t make it any less extraordinary.

The Lead Pollution ReturnWood heating is reintroducing lead into the air of local communities and homes, according to a systematic investigation by academics from the University of Massachusetts Amherst. The research reveals that despite lead being banned as an additive in petrol more than 25 years ago due to its overwhelming neurotoxicity, the metal is now making a comeback through wood burning.Scientific FindingsThe research began by analyzing samples of particle pollution from five suburban and rural towns in the northeast US. Scientists looked for tiny particles of potassium that are emitted when wood is burned, as well as particles containing lead. Samples from seven winters revealed clear associations between potassium and lead - when there were more wood burning particles in a daily sample, there was more lead in the air."For the most part, wood burning produces significant amounts of particle air pollution, and a small but measurable fraction of this is a powerful neurotoxicant," said Prof Richard Peltier, the senior author of the research.Geographic PatternsThe project was extended to 22 other towns across the US, with the relationships between lead and potassium varying from place to place. The strongest associations were found in the Rocky Mountains. By factoring in temperature effects, the researchers strengthened their conclusion that the additional lead came specifically from wood burning.Health ImplicationsAlthough the lead concentrations found were less than US legal limits, health experts emphasize that any exposure to the metal is harmful. "The most logical answer is that it comes from uptake in the soil, probably riding along with the nutrients and water that trees need. Once in the tree, it deposits in the tree's tissues and remains until that tree is burned," explained Tricia Henegan, a PhD student at Umass Amherst and the first author on the research.Historical ContextLead was used globally as a petrol additive from the 1920s and found its way into oceans, soils and people. Evidence on harms from exposure to lead were systematically suppressed by industry for decades. Today it is acknowledged that lead exposure causes harm at all stages of life and comes from many sources.Policy RecommendationsThe researchers suggest that their findings challenge previous assumptions that lead in wood smoke came primarily from waste wood covered with old lead paint. "The use of wood as an energy source is a relic of the past, one that should not be relived if given a choice. Although wood fuel use can feel nostalgic, it does have negative consequences on air quality, and therefore public health," Henegan concluded.

Anti‑tobacco advocates have condemned Philip Morris International’s (PMI) new global advertising push, arguing the “I AM Marlboro” campaign is a thinly veiled attempt to lure a younger audience while the company touts its transition to smoke‑free products.Global “I AM Marlboro” Campaign Sparks Accusations of Youth TargetingThe campaign features billboards, television ads and online videos that portray young adults climbing mountains, playing in rock bands and competing for branded merchandise such as scooters. PMI has filed or owns trademarks for the campaign in roughly 20 countries, including Indonesia, Morocco, Bangladesh and Germany.Roadside stands in the Philippines offer competitions to win a scooter for buying Marlboro packs.An Indonesian TV spot shows youthful adventure scenes tied to the brand.Critics note the slogan “I AM Marlboro” mirrors a previous “Be Marlboro” campaign that was banned in Germany for appealing to teenagers.Financial Snapshot: Smoke‑Free Products Now Dominate PMI’s RevenuePMI’s own spokesperson highlighted that in Q1 2026 43 % of net revenues came from smoke‑free products, a stark contrast to “essentially zero” a decade ago. Over the past ten years the company reports having sold 240 billion fewer cigarettes, while shipments of alternatives have risen annually.Implications for Tobacco Regulation and Youth HealthPublic‑health experts argue the campaign’s focus on identity, belonging and self‑expression directly targets adolescents, a demographic most vulnerable to nicotine addiction. The use of platforms like YouTube, Instagram and TikTok amplifies reach among youth, raising concerns for regulators in markets where the ads are most visible, such as Indonesia and the Philippines.Mark Hurley, vice‑president of the Campaign for Tobacco‑Free Kids, called the effort “doubling down” on cigarette promotion.Jorge Alday of Vital Strategies warned that genuine commitment to ending cigarettes would preclude any tobacco advertising.What the Future Holds for PMI’s Smoke‑Free TransitionIf regulatory bodies act on the alleged youth‑targeting tactics, PMI may face bans similar to the earlier “Be Marlboro” prohibition in Germany. The company’s claim that its marketing is “restricted to adults” will likely be scrutinized against the campaign’s visual and narrative cues that resonate with younger audiences. Continued pressure could accelerate PMI’s shift toward a fully smoke‑free portfolio, but only if it aligns its branding strategies with public‑health expectations.

The Earthwork Experience Delcy Morelos' earthworks are a sensory journey, inviting visitors to immerse themselves in the natural world. Her use of soil, sourced from various locations, creates a unique and often nostalgic experience. Morelos' work challenges our perception of soil as merely dirt, instead positioning it as a vital component of our existence. The Womb Space: A Sensory Phenomenon The Womb Space, Morelos' previous installation in Mexico City, was a cavernous earthwork that drew over 60,000 visitors. The structure's terraced walls of reddish soil and cascading plant matter created a sense of being inside a mountain. Visitors were struck by the silence, peace, and primal connection to the earth. Origo: A New Installation in London Morelos' latest earthwork, Origo, is a 24-metre-wide outdoor pavilion in London's Barbican. The installation features cave-like passages and a central patio for meditation and relaxation. Morelos' use of organic materials and egg-like form creates a dialogue with the Barbican's angular, concrete architecture. The Power of Soil Morelos' work is rooted in the Andean cosmovision, which perceives mountains, seas, and other natural elements as sentient beings. Her elevation of soil challenges the dominant Western worldview, which positions humans at the pinnacle of existence. By promoting a horizontal relationship with the earth, Morelos encourages a sense of care and listening. A Mission to Reconnect Morelos' earthworks are a mission to reconnect people with the natural world. Her installations dismantle the belief that soil is mere dirt, instead revealing its vital role in sustaining life. As Morelos says, 'I work with earth so you realise you're made of earth too. There's no separation. If you hurt her, you hurt me, you hurt yourself.'

The Lead: Unprecedented Snowpack Loss RevealedHigh above the jagged peaks of California's Sierra Nevada, specialized aircraft equipped with Lidar technology are revealing what the naked eye cannot see: record-breaking snowpack loss across the US West. This high-tech monitoring system, developed by NASA and now commercialized by Airborne Snow Observatories, is providing critical data as the Western US faces what experts call an "unprecedented" water crisis.The Technology: Precision Snow Measurement from AboveTom Painter, CEO of Airborne Snow Observatories, explains how his technology works: "The Lidar sprays out about 800,000 pulses per second," creating a 3D map of snow depth accurate to within 3cm. This precision measurement allows water managers to calculate exactly how much water is stored in the snowpack – the "frozen reservoirs" that supply water to millions of people and critical agricultural areas across the Western states.The Data Analysis: Record-Low Snowpack FiguresThe numbers are alarming. According to Climate Central, the total water stored in the Western snowpack this winter hit its lowest level on record right when it should have been hitting its annual peak. California's statewide snowpack stood at a mere 18% of average on April 1 and has continued declining since. More than 60% of the lower 48 states are now gripped by drought – the most widespread spring dry spell since monitoring began in 2000.The Impact Analysis: Water Security and Wildfire RisksThe consequences of this snowpack loss are twofold. First, early snowmelt means water is flowing into reservoirs months ahead of schedule, leaving Western states with a "really long dry season" when they need water most. Second, the landscape begins to dry out months ahead of schedule, dramatically increasing wildfire risks. Nevada's deputy state climatologist Tom Albright notes: "We wish we could tell it to stay put a little longer," as spring runoff from snowmelt is two months ahead of schedule.The Prediction: A New Normal for the WestWhile this year's drought is anomalous when looking at historical records, experts warn it may be a preview of the coming decades. "As we look forward this year will become less and less unusual and may become not unusual at all at some point in the future," Albright warns. The water systems of the West, built on the assumption that snow would remain in mountains until mid-summer, are being fundamentally rewritten by climate change, requiring new approaches to water management in an increasingly arid future.

The Threat to Regent HoneyeatersResearchers have discovered that brush-tailed possums are occasionally raiding the nests of critically endangered regent honeyeaters, increasing their risk of extinction. Uncovering the Impact of Possum RaidsBianca McBryde, a researcher at the University of Sydney, set up 40 artificial nests in trees at North Head in Sydney. Over two weeks, possums raided only four of the nests, but this infrequent raid could have a significant impact on the honeyeaters' prospects for survival.The Data AnalysisMcBryde's research found that the loss of just a few eggs to the opportunistic possums could increase the risk of extinction within 20 years by about 35%. The Conservation ChallengeRegent honeyeaters are one of Australia's most threatened birds, with fewer than 250 likely left in the wild, restricted to three sites on the periphery of the Blue Mountains, to the west of Sydney. The birds' woodland habitats have been largely lost to developments and farming.The Future of ConservationThe research highlights the importance of understanding the impact of possum raids on regent honeyeater populations. By studying these interactions, researchers can develop more effective conservation strategies to protect this unique Australian bird.

The Devastating Impact of Cartel-Driven Deforestation Decades ago, the children of Rochéachi village in the Sierra Tarahumara – pine-covered mountains of north-west Mexico’s Chihuahua state – would run through the forest by night. In the rainy season, they would collect fireflies whose glimmering light would flicker through the hollows of the pine trees. “We had peace. We used to walk and play and be together,” says one mother of three, who asked to remain anonymous, about the forest she once knew. “Now, children can’t go out to play. We don’t know what might happen.” The Rise of Illegal Logging and Cartel Control Since the mid-2010s, criminal groups, including factions of the Sinaloa cartel, have intensified illegal deforestation, seizing control of communal land known as ejidos through intimidation, extortion, and murder. The ecological toll has also been severe. According to the environmental organisation Water and Forests for Life, 9,000 hectares (22,400 acres) of forest in the Sierra Tarahumara have been lost to illegal logging since 2001. The Economic and Environmental Consequences Sawmills linked to the cartels falsify documents to launder timber estimated by one academic to be worth up to $270m (£200m) annually, while the US government puts the figure at $342m to $978m. Deforestation has disrupted the region’s hydrological system, causing droughts, crop failures, and food insecurity. The Human Cost and Fear Rochéachi, about 20 miles from the town of Guachochi, is home to several groups of Indigenous people, including the Rarámuri and Ódami. Along the Sierra Tarahumara’s nearly 745-mile (1,200km) length, individuals and organisations have reported a sharp rise in illegal deforestation. “Everyone is afraid,” says the woman from Rochéachi, a member of the Rarámuri Indigenous community. “I’m worried that illegal logging is destroying everything.” The Need for Effective Action Local people condemn the lack of an effective means of reporting forest-related crimes anonymously. Some claim that the groups responsible for illegal logging in the Sierra Tarahumara have informants within Mexico’s environment ministry and the office of the federal attorney for environmental protection.

A Wildlife Oasis Above a Busy FreewayAtop a gigantic wildlife bridge in California this week, butterflies filled the air. A red-tailed hawk sailed above as a slight breeze ruffled the 6,000 native plants, including poppies and purple sage. You'd never guess that below this quiet expanse of rocks and plants, a 10-lane freeway ferries 400,000 cars each day. Despite facing intense conservative criticism, the world's largest wildlife crossing is nearing completion and will be officially "open for animal business" on December 2, 2026.The Engineering Marvel Connecting Fragmented HabitatsWhen the project broke ground four years ago, enthusiasm was high. The wildlife crossing in northern Los Angeles county would be the largest of its kind in the world, providing safe passage for mountain lions, bobcats, lizards, and other wildlife struggling to navigate the urban landscape. The bridge spans the 101 Freeway, a major barrier that has fragmented habitats in the Santa Monica Mountains for decades.Beth Pratt, California regional executive director with the National Wildlife Federation and the public face of the crossing, has overseen this ambitious project from its inception. Despite receiving hate messages and threats to her safety, Pratt remained committed to seeing the project through to completion.The Financial Realities of Mega-Conservation ProjectsThe project's budget has increased from $93 million to $114 million, a 23% increase that critics have seized upon as evidence of mismanagement. However, Pratt points out that the National Highway Construction Cost Index has increased 67% since 2021, making the project's cost increase actually below the national average for highway construction.The timeline has also faced challenges. Initially planned for completion in 2025, the project encountered two years of record rains and flooding after breaking ground in 2022, necessitating a revised schedule with a new completion date of 2026. "We have experienced no major delays since then," Pratt notes.Political Polarization of Environmental InfrastructureIn recent weeks, the bridge has landed in the news for controversial reasons. The Murdoch-owned California Post published an op-ed in March, penned by two writers from the conservative Manhattan Institute, that criticized the project as going over budget and called it a "jobs program for environmentalists" and a "multimillion-dollar bridge to nowhere." Other conservative commentators piled on, from Fox News to Trump's transportation secretary, Sean Duffy.The backlash extended beyond media commentary to personal attacks on Pratt. "The hate was really ugly," she says. "We had to contact law enforcement." The National Wildlife Federation has now hired security and changed protocols to keep Pratt and other organizers safe at the crossing.A New Era for Wildlife Conservation in Urban AreasDespite the controversy, the ecological benefits are already evident. Butterflies and caterpillators have found their way to the native plants, a western fence lizard named Bob has made a home at the top of the stairs, and a rattlesnake has taken up residence at the bottom. These early inhabitants demonstrate the project's success at promoting biodiversity and coexistence.Researchers with the National Park Service have been studying five target species that will benefit from the bridge, monitoring their movements and numbers before and after the crossing opens. "The amount of available, protected habitat we do have in the Santa Monica Mountains is prime, great habitat for these species," says Jeff Sikitch. "It's even supporting our last remaining large carnivore, the mountain lion."The Future of Wildlife CrossingsAs construction continues, with workers building a second large structure to bridge a local road and connect the overpass with surrounding hillsides, the project stands as a model for future conservation infrastructure. Once completed, the crossing will feature more than 50 cameras to capture wildlife usage, providing valuable data for future similar projects.For Pratt, the nearing completion represents an emotional culmination of decades of work. "This project that is decades in the making – open for business," she announced, teary-eyed. The wildlife bridge not only addresses a critical ecological need but also demonstrates how large-scale conservation projects can navigate political opposition to deliver meaningful environmental benefits.