Scientists stunned by rare Arctic lightning storms north of Alaska

[-misanthroptimist]

4. The insurmountable problem will occur

When several major crop-producing regions suffer severe weather in the same growing year. Then food will become scarce. Rich nations will see skyrocketing prices; poor nations will starve. That is when civilization will begin to unravel.

My guess is that that process will begin between 2035 and 2040. By 2050 there is a plausible chance that humanity will live in one of those post-apocalyptic nightmares that are so popular with moviegoers.