For example, if micro black holes are created, which CERN estimates about 1 micro black hole every second, Dr. Rossler's calculations estimate 50 months to 50 years to grow large enough to destroy Earth.
So the effects of this experiment may be months to years after the first LHC collisions.
Dr. Rossler's website is lhcfacts.org
Dr. Wagner's website is lhcdefense.org