By the late 1920s, manufacturing and mining contributed to 23% of GDP, compared with the 21% for all of agriculture.

For example, consider what are referred to as Blood diamonds, diamonds whose mining contributes to a war.

And with its large deposits of copper on its outskirts, mining is also contributing to the city's economy.

Intensive agriculture and mining contributed to pollution in the Sacramento, and significant changes to the river's hydrology and environment.

Engineers, politicians and industry officials may debate how much mining and timbering contribute to the devastating floods.

While there remains significant metallic deposits, their mining only contributes 1.64% to the economy.

In the 2006-07 financial year mining contributed 9% of Queensland's GSP.

There are deposits of limestone in the county, and mining and construction-materials manufacturing also contribute to the local economy.

While coal and the mining of it contribute hugely to pollution, in some countries, they also provide huge employment.

Industry and mining contribute about one-third of the annual GDP.