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Earth Sciences Jul 9, 2026

Earth's deep memory is thawing with the Arctic permafrost, degrading records of our ancient world

Permafrost usually hits the news as a hazard, a planetary risk. When this ice-rich ground thaws, it damages roads and building foundations. It drains lakes and tips trees into drunken forests. It releases greenhouse gases ...

Ecology Jul 9, 2026

Heat waves: Why British trees are shedding branches and dying

If you visit the Royal Botanic Gardens at Kew, on the edge of London, you will see a brightly painted skeleton of a dead oak tree. The tree, known as the climate-changed oak, succumbed in the heat wave of 2022. Instead of ...

Ecology Jul 9, 2026

Heat waves push tropical forests past photosynthesis limits across 57 million hectares

As heat waves continue one after another, we are feeling their effects on our own bodies: It becomes harder for us to function normally. Trees also have their limits when temperatures are too high. Above a certain critical ...

Environment Jul 9, 2026

Researchers develop low-cost AI tool to help cities map urban tree canopy

As a heat dome drives dangerous temperatures across much of the United States and renews concerns about extreme heat, USC researchers have developed a new, freely available AI tool that could help cities better understand ...

Environment Jul 8, 2026

Older adults are at risk in heat waves, but it's not just age: How public systems and policies are failing them

Five years ago, British Columbia's heat dome became one of the deadliest weather disasters in Canadian history.

Plants & Animals Jul 8, 2026

Nature's puncture tools reveal shape trade-offs between piercing power and strength

Nature has invented countless types of pointy appendages, and scientists have long sought to explain what makes these structures so effective at puncturing other things. A new study models the key physical characteristics ...

Evolution Jul 8, 2026

Tiny Jurassic bird reveals a key step in bird evolution

The transition from a lumbering, heavy dinosaur body to the flight-adapted bird body plan is one of many fascinating episodes in evolutionary history. Working out how this massive transformation took place relies heavily ...

Ecology Jul 8, 2026

Cambodia wants to bring tigers back, but should it?

Pan Sok still remembers his relative screaming as a tiger dragged him away one night, deep inside the Cambodian rainforest where they were tapping trees for resin.

Plants & Animals Jul 8, 2026

How tall and short trees can coexist in old growth forests

Forests are shaped by light competition. The trees that grow the tallest have access to the most sunlight, blocking the rays and rendering the shaded space around them inhospitable to shorter trees below. In this stem exclusion ...

Ecology Jul 7, 2026

Fungi communicate with one another in the presence of metal pollution in forests

VUB researcher Maarten Ottaway investigated how trees and their invisible underground allies—the fungi—respond to soil pollution. His Ph.D. sheds new light on an age-old partnership that is crucial for healthy forests, and ...

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