Can COP21 leaders fight both climate change and terrorism?

Paris will be the scene beginning Monday of COP21. It is a greatly anticipated gathering of world leaders who want to do something about climate change, as it is understood by scientists. COP we are told stands for Conference of the Parties, that is, those who care.  The 21 is the Century of course.  In all of this, however, some Europeans leaders may wish that the COP in question was a different sort of policeman. Maybe one designed to deal first with terrorism. Francoise Hollande said that mankind has as much duty to fight climate change as it does terrorism. So saying he gave one the same ranking as the other.  The buoyancy of COP21 is attributable in part to the presence of Justin Trudeau, who has given some the belief that climate change is more important to him than anything.  Today Quebec Premier Coullaird made a stem-winder of a speech against terrorism The CBC seems to think he has other things on his mind than the environment.