You people think it will be a night and day collapse? Get real.

You know that's the thing, nobody really knows. It's all predictions based on necessarily flawed models. And they range from relatively mild changes until the turn of the century on the one hand, over methane released from thawing permafrost leading to a steep acceleration of warming in the middle, to having crossed an irreversible tipping point decades ago that will lead to an algae bloom in the oceans which will render the atmosphere unbreathable on the other hand. We can only hope it's on the former end of the spectrum, but I wouldn't bet on it personally.