Why China threatens the world economy - in 90 seconds

China has been the engine of global economic growth for many years, but it is now becoming one of its biggest threats.

It is the second largest economy in the world and consumes almost half of all industrial commodities, but its economic growth is slowing down.

^{A Chinese investor monitors stock prices at a brokerage house. Photo: AP}

This has had a ripple effect - sending the prices of such as oil, aluminium and copper sliding.

These falls have in turn hit the economies of commodity-producing countries - such as Brazil, Chile and Russia - particularly hard.

But the effects are being felt further afield too - watch the video to find out where and why.