A timeline of the precious metal's effects on the world – from gold rush to gold standard.
Mining companies have been slow to adopt new safety requirements. Critics say the West Virginia disaster shows that Congress needs to step in. The industry says it needs clearer guidance.
The Worldwatch Institute released a study Thursday showing that jobs in renewable energy are expanding worldwide, while jobs in coal and natural gas are disappearing.
The region's newcomers, who came for high-tech jobs and scenery, worry about ecological costs.
How conscientious investors can engage with this hot commodity.