Explainer: How much carbon can the world's forests absorb?

You are walking through the bush when you see an enormous tree trunk, tens of metres long, lying across the forest floor. Imagine you and several dozen friends lifting it by hand. Now you've literally grasped the significance ...

Mixing materials could lead to better biofuels

With the world coming to terms with the need to leave fossil fuels in the ground, renewable alternatives have never been more important. One such alternative is bioenergy coming from the burning of biomass. Now a new article ...

Engineers reveal the secrets behind green graphene

When Ange Nzihou, an expert in converting society's waste into valuable products, visited Princeton in 2022, he brought with him a technique to transform waste biomass into graphene, a material with many uses from batteries ...

Two-thirds drop in large fish numbers in 100 years

Overfishing has significantly reduced the populations of larger species of marine fish. In fact, stocks of large fish have declined by two-thirds in one century. These findings come from an international research team who ...

A whole new meaning for thinking on your feet

Smithsonian researchers report that the brains of tiny spiders are so large that they fill their body cavities and overflow into their legs. As part of ongoing research to understand how miniaturization affects brain size ...

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