Reply #20: It's a good article overall, but I think it dwells on the "problems" overmuch

[Barrett808]

For example, there are good theories for the "transition problem" and "effect exceeds cause" questions.

The transition problem was well explained by Barry Saltzmann in 1994 by using the long-term drawdown of atmospheric carbon due to carbonate weathering to drive a nonlinear model of climate state. He exactly reproduced the timing and periodicity of the transition.

The effect-exceeds-cause question is largely answered by invoking the short-term feedback of deglaciation and microbial release of the soil carbon store.

This is not to say we don't have much to learn about the climate system, but our knowledge is much better than most people think.

As always, I suggest reading a college-level textbook to learn the science. This one's free online: http://geosci.uchicago.edu/~rtp1/ClimateBook/ClimateBook.html. I guarantee you'll find it a rewarding experience.