A team led by the Austrian chemist Irwin Reisner of the University of Cambridge It has succeeded several times in the past in developing “artificial leaves”, that is, systems that use sunlight to produce an energy source from carbon dioxide and water. However, clean water was previously necessary to achieve this, Reisner now points out The system was presented in the specialized magazine “Nature of Water”.which uses the sun to simultaneously produce green hydrogen and clean water from polluted or salty water.