The Witwatersrand region has tailings hills containing an estimated $24 billion worth of gold, which can be mined using new, more efficient methods.
Called 'the world's richest gold mine', this abundant resource is too difficult to exploit.
Randomly drilling into the ground, discovering a 125km long gold mine containing 200 tons of gold thanks to high technology: The discovery is predicted to impact gold prices
In the province of East Java, Indonesia, hundreds of miners risk their lives to get 'golden blocks' flowing from the crater of an active volcano with extremely harsh working
The value of this gold mine is greater than the GDP of some countries in the world.
Manual and small-scale gold mining is a major source of mercury emissions in South America and sub-Saharan Africa, as mercury is often used to extract gold.
Recently, a solid gold bar weighing up to 10kg has been found in southeastern Russia.
The Moxihatetema tribe living in isolation in the Amazon forest must try to protect the territory to counter the threats from illegal gold miners.
This is the largest gold mine ever discovered in Xinjiang area rich in natural resources.
Cooking with charcoal is one of the leading threats to human health. Meanwhile, contaminated surface water is even more frightening than radioactive waste