More than 100 protests against the natural gas drilling process known as fracking are planned across the globe on Saturday, and organizers are using an overly simplified message to draw people out and spur outrage.

Spencer Platt, Getty Images

The GlobalFrackdown website that's promoting the protests claims the process "pollutes water and makes people sick." There is disagreement among scientists about the risks.

The U.S. Environmental Protection Agency and many state regulators contend that fracking can be done safely. They say the boom in natural gas production has created jobs and lowered prices for industry and consumers.

The American Lung Association says natural gas has helped reduce air pollution as many dirtier coal-fired power plants shift to natural gas.

Protests are planned in cities that include Pittsburgh, New York, Paris and Madrid.

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