Related topics: climate change

An artificial sunflower that bends toward the sun

A team of researchers from the University of California and Arizona State University has found a way to create a material that demonstrates tropistic behavior. In their paper published in the journal Nature Nanotechnology, ...

Porous polymer coatings dynamically control light and heat

Buildings devote more than 30% of their energy use to heating, cooling, and lighting systems. Passive designs such as cool roof paints have gone a long way toward reducing this usage, and its impact on the environment and ...

Feeling blue: Qatar road turned azure to cool city

Qatar has turned a busy stretch of road in the capital Doha bright blue as part of an experiment to cool the tarmac surface and reduce the temperature of surrounding areas.

Can Switzerland succeed without fossil fuels?

If we want to get rid of fossil fuels nationwide, there is a lot to do. It will be a generation project, that much is clear. Empa researchers Martin Rüdisüli, Sinan Teske and Urs Elber have now calculated how long and steep ...

Getting more heat out of sunlight

A newly developed material that is so perfectly transparent you can barely see it could unlock many new uses for solar heat. It generates much higher temperatures than conventional solar collectors do—enough to be used ...

Islands in the sun: Heatwave gives cities that sinking feeling

Boffins call it a heat sink—a passive exchanger designed to dissipate heat—but when the sink is an actual city, its concrete and asphalt sweltering in the heat, it feels more like an oven to those who live and work there.

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