Fracking risk is exaggerated
Hydraulic fracturing, or fracking, involves pumping water, sand and chemicals into methane-rich shale deposits around 2 kilometres underground to liberate natural gas. It has been accused of contaminating drinking water with methane and chemicals, and causing minor earthquakes.
"We think the risk is pretty low," said Mike Stephenson, head of energy science at the British Geological Survey at a press briefing in London on Tuesday.
