Fracking is a perfectly legitimate method of releasing oil and gas from reserves and has been used extensively in the North Sea for over 20 years. Like everything, from disposing of clinical waste to driving a car if done negligently, or knowingly or recklessly dangerously it is harmful to individuals and the environment
But if were to ban everything that might just be hazardous to us if done inappropriately, we would have to live in a world where no energy, food or mineral resource was ever exploited bcause it might be harmful.