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| “We are modelling the energy city of the future” |
Buildings, districts and cities currently often have outdated energy systems. Homes must be made more energy-efficient and districts need to be supplied with renewable energy. In cities, the aim is to turn energy production and mobility into sustainable systems. This involves complex energy models that Kristina Orehounig is researching in her “Urban Energy Systems” department at Empa.
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Why study biodiversity? Because we depend on it!
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In the Blue-Green Biodiversity research initiative of WSL and Eawag scientists from around the world are working together to find solutions to the pressing challenges of biodiversity loss. The scientists explain in a video what they are working on – and why.
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Water and quantum magnets share critical physics
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Water can freeze from liquid to solid ice or boil into a gas. In the kitchen these “phase transitions” aren’t smooth, but their discontinuous nature is smoothed out at high pressure. An international team of physicists – led by EPFL and in collaboration with the Paul Scherrer Institute PSI – has now discovered the same behavior in certain quantum magnets,
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Rivers and streams emit much more CO2 at night than during the day
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EPFL scientists have found that streams and rivers – or “running waters” – emit on average four times more CO2 at night than during the day. That matters because most estimates of global CO2 emissions are made using measurements taken during the day, thereby introducing a potential bias into the calculation of the global carbon cycle.
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