Scientists in Jena are working on a technology to efficiently store and provide energy as needed. New are the materials used: plastic and saline solution.
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Boasting a sea port, an ore mine and lots of renewable energy, northern Sweden is an ideal location for producing hydrogen-powered steel. But there's no lack of challenges to tackle.
Wind and solar farms do not generate enough electricity at all times and in all weather conditions. Germany's energy transition hinges on the storage of power from renewables — and batteries come to the rescue.
Building sites produce emissions and air pollution. Cities, developers and construction machinery manufacturers are looking for ways to clean them up.
Many of the technologies needed to stop climate change are still in early stages of development, a study of green tech patents has revealed. Greater action is required to bring them to market in time.
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