As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton conductivity is crucial for the latter; protons, i.e. positively charged hydrogen ions, are formed from hydrogen, which is used to power the fuel cell. Empa physicist Artur Braun and Qianli Chen, a doctoral student at ETH Zurich, conducted neutron scattering experiments on the Swiss Spallation Neutron Source (SINQ) at the Paul Scherrer Institute (PSI) that document the mobility of protons in the crystal lattice. In the process, they observed that the proton movements in ceramic fuel cells obey far more complex laws than previously assumed: The movement of the protons takes place according to the so-called polaron model, as the researchers recently reported in the renowned journal Nature Communications.

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Are there similarities between the tobacco industry and the fossil fuel industry when it comes to legal liability? Could, for example, energy companies that rely on fossil fuels and emit greenhouse gases be held accountable for the damage caused by climate change? Two researchers in the Faculty of Law have set out to answer these important questions.

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Federal scientists forecast that this summer’s Gulf of Mexico dead zone – an area of low to no oxygen that can kill fish and other marine life – will be approximately 8,185 square miles, or about the size of New Jersey.

This would be the third largest dead zone recorded since monitoring began 32 years ago – the average Gulf dead zone since then has been 5,309 square miles.

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Today Scientists have called for action. The scientific journal Nature ecology & evolution have published a joint statement from scientists at Center for Macroecology, Evolution and Climate, University of Copenhagen and North Carolina State University. The scientists call attention to a serious lack of data on the worldwide distribution of disease-causing organisms. Without this knowledge, predicting where and when the next disease outbreak will emerge is hardly possible. Macroecologists hold the expertise to create the needed data network and close the knowledge gaps.

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