From crops to energy and metals, average material consumption fell from 15 tonnes in 2001 to just over 10 tonnes in 2013
World’s largest steelmaker blames falling commodity prices and its $4bn writedown on company’s mining operation
Share trading in China halted as survey renews fears of economic slowdown.
Eurozone manufacturing improves, but UK and US below expectations.
Around £34bn wiped off FTSE 100.