Energy & Green Tech

Elephant-inspired cement tiles cool buildings without electricity

Inspired by the cracked, water-trapping skin of elephants, Penn researchers have developed a low-cost cement tile that cools buildings by capturing and slowly evaporating water—turning a structural flaw into a climate solution.

Energy & Green Tech

Tracking a flight path to a green aviation future

Aviation is one of the fastest-growing sources of greenhouse gas emissions, generating around 14% of transport emissions—second only to road transport. It is also one of the world's hardest-to-decarbonize industries. Unlike ...

Energy & Green Tech

Soon, there will be so much electricity you might be paid to use it

Imagine a perfect summer weekend day: a cloudless blue sky with a gentle breeze. Solar panels are at full capacity, wind turbines are turning offshore—and many people are out and about in gardens or parks. Electricity supply ...

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