There's good and there's bad news. The good news first. Since this is built on the France-Swiss border, if they do create a black hole France will get sucked in first and the rest of the world can live for a certain amount of time without France.
The bad news is the name ATLAS selected for one of the major components. In the novel Atlas Shrugged, Ayn Rand posits an invention designed by scientists that had no idea what they were really dealing with that destroys half a continent. It would be ironic if this device similarly named also destroyed half a continent. Back to the good news, the half of a continent that this would destroy...is France.