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A face in profile against a background of books, sarcophagi and scent molecules.
Society

Recreating the smells of history

Using chemistry, archival records and AI, scientists are reviving the aromas of old libraries, mummies and battlefields

A collage illustration shows people of all ages and ethnicities using shared mobility services, including e-scooters, bicycles and rideshares.
Society

Shared mobility: Making travel easier for all

Carshares, bikeshares and the like are a positive for the environment, though access to them isn’t equal. What can be done to give everyone more transportation options?

Drawing of a home in cross section highlighting parts and places to make more energy efficient.
Society

The great green building makeover

Getting our homes and workplaces to be energy efficient has major benefits — but not when it is done one window at a time. Here’s why deep retrofits and biomaterials are key to more sustainable living.

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