Reuters: do running start. But the annual meeting of the 198 nations of the Montreal Protocol began on a note of contention that five days of discussions could not overcome. The 22-year-old Montreal Protocol has delivered an unbroken string of successes in the battle against ozone depletion, accomplished with comity and cooperation, but now observers say it has caught the climate virus. Rhetoric trumped getting down to business, as an agreement to rid the world of HFCs, enormously potent …