Latest stories in Science.

Himalayas approaching tipping point, millions of livelihoods at stake-report

  • Himalayan glaciers are melting faster than a decade ago and the region may hit "peak water" by mid-century, threatening long-term water security.
  • A late‑August Himalayan glacier collapse killed at least 1,300 people and left 5,300 missing; melting glaciers are also creating unstable lakes that put millions downstream at risk.
  • The Himalayas support water and economic activity for hundreds of millions (over 20% of India's GDP), yet only about 21 of an estimated 40,000 glaciers are monitored.

Earliest known drug use may have trapped prehistoric foragers in a ‘vicious cycle’

  • Researchers found dental grooves and traces of arecoline on Sulawesi foragers, indicating betel nut sucking as early as 25,000–16,000 years ago — possibly the oldest known human drug use.
  • Habitual nut-sucking wore down teeth, exposed painful pulp and likely led to dependence, creating a prehistoric “vicious cycle” of self-medication.
  • Betel nut chewing is still common today (about 1 in 10 people across Asia/Pacific) and produces mild euphoria and alertness, later enhanced by adding slaked lime.

It’s not just food: The plastic packaging your food comes in may carry cancer-linked chemicals, and most go untested

  • New study suggests food packaging isn't harmless — about 1 in 12 known food-contact chemicals were flagged as potentially carcinogenic, endocrine-disrupting, or otherwise hazardous.
  • Even worse, researchers say most FCCs are under-studied: roughly 13,000 of 15,000 lack clear hazard data, so many risks are simply unknown.
  • Fixes can backfire — replacing banned chemicals (like BPA) with lookalikes (e.g., BPS) can lead to "regrettable substitutions" that prove just as harmful.

Scientists and fishermen celebrate return of tuna

  • Atlantic bluefin tuna have made a dramatic comeback in UK waters, with scientists and fishermen working together to tag and study them.
  • Regulators have raised quotas and doubled commercial licences, creating fresh income and charter opportunities for coastal communities.
  • Experts attribute the return to better management and warming seas (more baitfish) — and anglers have even landed a 338kg giant tuna, so training is now required for safe handling.

A stronger-than-normal El Nino alarms scientists over Galápagos wildlife and forests

  • NOAA predicts a very strong El Niño (about 2.2°C above normal), raising major concern for the Galápagos' fragile ecosystems.
  • Iconic species — Galápagos penguins, blue-footed boobies, flightless cormorants, sea lions and corals — face food shortages and could see big population drops (scientists warn at least ~20% decline), echoing the severe 1998 losses.
  • Local scientists, the government and NGOs are racing to protect species with invasive-plant control, seed banking and nurseries to help vulnerable forests and plants survive the heavy rains.

World's most endangered tigers born in Greece as zoos build a safety net

  • Three 2‑month‑old Sumatran tiger cubs at Attica Zoological Park near Athens were microchipped and vaccinated as part of a global effort to build a safety population.
  • The Sumatran tiger is critically endangered (about 400 remain) due to aggressive deforestation, so the cubs’ birth offers hope for future reintroductions.
  • The trio — two males and a female born to mother Toba (father Argos died of cancer) — are feisty, will get names from Homer’s Odyssey, and require careful, stressful handling by zoo staff.

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