What if humans continue to release greenhouse gases into the atmosphere at a rising rate? How will this affect global climate? How will the biosphere (life on Earth) respond to these changes? Actually, these questions were first asked more than 100 years ago by Swedish physicist Svante Arrhenius.
Interesting write-up by David Herring (from 1999) about climate modeling using computer models, different model types (simulation vs. data-driven), their role and function, caveats and their potential to help us understand the future.