The Global Frackdown website that's promoting the protests claims the process ``pollutes water and makes people sick.''
There is, however, disagreement among scientists about the risks.
The US Environmental Protection Agency and many state regulators contend that fracking can be done safely.
Green MP Elizabeth May will be speaking at an anti-fracking rally in front of the leg in Fredericton at noon today.
Protests are planned in cities that include Pittsburgh, New York, Paris and Madrid.