11 years ago
What is the world’s scarcest material?
Should we worry about natural resources running out? As Rachel Nuwer discovers, that’s the wrong way of looking at a far more complex problem. Of all the world’s materials, which one will “run out” first? The more we consume as a society, the more we hear about how vital ores and minerals are dwindling, so it seems logical to assume that a few may be about to disappear.
Continue Reading
http://www.bbc.com
Join the Discussion