it's fucking simple, really.
>When coal was created?
Carbonierous period and followin
>What was the climate back then?
Warm and a lot of oxygen, everything was green, huge and full of life
>What will happen if we release back the co2 trapped in all that coal (which is, in fact, the green big life from that period)?
We create conditions that promote big, lively life explosion again.
>White life form will evolve in that conditions?
Tall, strong and full of life.
>Who will perish?
fucking manlets.

It's simple, really.