Alexander Hellemans, Switzerland
Greener milk: how to make cow’s nitrogen intake efficient
Greener milk: how to make cow’s nitrogen intake efficient The amount of nitrogen that is excreted by livestock is directly proportional to the amount it is fed . This is according to Chris Reynolds a researcher in nutritional physiology of ruminants  at  the University of Reading , UK.
Plastic waste set in concrete
Plastic waste set in concrete In Europe more than 12 million tonnes of mixed plastic waste are dumped on landfills every year, according to a report from NUMIX scientists. The recycling of plastic into usable products has proven difficult .