Like anything else, water is great in moderation—urbanites need it to survive, but downpours can flood streets and homes. And as you might have noticed, climate change isn’t good at moderation. A ...

Cities around the world are trying to become more like sponges. The idea sounds simple enough, with more parks, rain gardens, green roofs, wetlands, porous soil, and smarter drains helping streets ...

Water modified to absorb gases in a sponge-like way can carry 10 times as much oxygen as blood, which could help it act as an oxygen source in artificial blood substitutes or to help preserve organs ...