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Climate Change

A short repeating movie clip shows a cyclist riding down a bike path in the dark; the path glows green.
Technology

Will glow-in-the-dark materials someday light our cities?

Substances that persistently luminesce are already used in some bike lanes, and in the future could be applied to sidewalks, streets and buildings — saving energy and reducing urban heat

A collage of photos shows five high-rise buildings made of mass timber.
Technology

Sustainable building effort reaches new heights with wooden skyscrapers

Wood engineered for strength and safety offers architects an alternative to carbon-intensive steel and concrete

Against a black background, various leaf cells are visible, including pores, veins and structural cells.
Living World

How to make corn more like cactus

It’s an agricultural moonshot: Scientists hope to increase plant yields by hacking photosynthesis, the process that powers life on Earth

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