and Jamie Pringle –
Each year more than 300 tonnes of processed gold are dumped in landfills. What if we could mine landfills for gold and other precious metals, ask researchers from Keele University.
A world powered by renewable energy will prize a very different set of resources than we do today. Which countries hold the key to unlocking wind and solar energy, and how will this shake up the world order? University of Swansea's Andrew Barron discusses.