The biggest obstacle on our way towards a sustainable-energy-based future is the problem of energy storage. Of all the energy generated by solar panels, wind turbines, ocean waves and other sources, only a small fraction is stored because today’s batteries are still not very efficient. So, a group of researchers from several U.S. and Chinese universities say we should try to mimic nature. VOA’s George Putic reports.
Scientists have expressed shock at the speed at which resistance to powerful antibiotics is able to spread from animals to humans. New research has shown how anti-microbial resistance to a key medicine likely spread from a pig farm in China, to affect human and animal species around the world, in the space of just a few years. Henry Ridgwell reports.