So the impact of previous comet was 10 times more than that of what might come in 2036, the previous comet hit mexico, earth was clouded with smokes and dusts for around 60 days, all tree died, vegeterian dinosaurs followed them and then the non vegeterian However the life in sea was not disturbed that much, so if you know where the comet is going to hit well in advance and relocate for a month under sea/in some island 1000 km away from the point of hit and assume that not all vegetation/animals die in the sea, you have 95% chance of surviving the comet hit However , I do think third world war may break out much before say by 2020 and can cause mass destruction since many countries including some terrorist organization might have access to nuclear bombs by then
seems all I need now is gils and I'm sorted! It'll bring a whole new meaning to 'sleeping with the fishes'