A way of making ammonia using a liquid-metal catalyst requires one-fifth less heat and 98% less pressure than conventional processes, say the inventors at RMIT University, Australia.
Australia's National Reconstruction Fund Corporation (NFRC) has made its first investment of $40mln in original equipment manufacturers for the mining sector.
Researchers at North Carolina State University, USA, have tried making man-made cellulosic fibres from non-wood sources such as agricultural residues and dedicated fibre crops.
New research has named the countries with the least estimated gold worth from recycled e-waste, with Azerbaijan, Namibia, Saint Lucia, and Zimbabwe topping the list.
Think tank Planet Tracker urges governments and investors to focus on terrestrial mining improvements as it publishes two reports in its deep-sea mining series.