/sci/ - Science & Math

What kind of time series forecasting is used for climate change predictions?

I know for a fact that weather forecasting is unreliable as fuck beyond 24 hours because we just don't have good time series predictors to deal with such chaotic systems yet.

How the fuck can they predict climate change in 100 years? What secret amazing model are they using for this, and why are they not millionaires applying the same model on the stock market to predict stock prices in 5 years from now?

Serious answers with references preferably, please.