Nonetheless, despite a voluntary policing effort by the industry, and the adoption of strict regulations by governments where the mines are located, certain environmental groups have attacked the use of cyanide. In part this basically good record is due to an evolving regulatory landscape, and a realization by the mining industry that cyanide spills are to be avoided. However, worldwide, the mining industry has shown it can work with cyanide responsibly. The chemical compound has on occasion been mishandled, and in some locations releases have created environmental problems. The use of low-cost cyanide heap leaching techniques to recover metal from ores has allowed miners to profitably extract gold deposits. Memories of past disasters reinforce present-day fears
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