Engineering

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Web tool looks belowground for an economically viable renewable energy source

Geothermal power has a lot of promise as a renewable energy source that is not dependent on the sun shining or the wind blowing, but it has some challenges to wide adoption. One of these challenges is that there are a limited number of locations in the U.S. that naturally have the right conditions: hot rock relatively close to the surface and with plentiful groundwater to heat up.

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Developing a low-carbon cement with a significantly lower embodied CO2 content than traditional cement

ETH researchers are developing a low-carbon cement with a significantly lower embodied CO2 content than traditional cement. The Ultra Green Concrete project aims to make low-carbon, high-performance concrete widely accessible.

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New cooling ceramic can enhance energy efficiency for the construction sector and help combat global warming

A significant breakthrough in developing a passive radiative cooling (PRC) material has been announced by researchers at City University of Hong Kong (CityU). The findings have been published in the journal Science in a paper titled “Hierarchically structured passive radiative cooling ceramic with high solar reflectivity.”

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Ammonia fuel offers great benefits but demands careful action, says study

Ammonia, a main component of many fertilizers, could play a key role in a carbon-free fuel system as a convenient way to transport and store clean hydrogen. The chemical, made of hydrogen and nitrogen (NH3), can also itself be burned as a zero-carbon fuel. However, new research led by Princeton University illustrates that even though it may not be a source of carbon pollution, ammonia’s widespread use in the energy sector could pose a grave risk to the nitrogen cycle and climate without proper engineering precautions.

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