There's basic climate science such as studies of proxies, forcing, feedback and weather. There's also modeling. Here's some uses of a popular open source model: http://www.ccsm.ucar.edu/publications/PhD%20and%20Masters%20Theses.htm Some of these are scientific, some are just GIGO, i.e. using the model, varying parameters, looking at changes but performing absolutely no comparison to the real world in any way. And among the scientific studies it is pretty clear that the model does not match reality in general.
I am an electrical engineer and have used simulation tools to determine the performance of my circuits for many years.
It did not take long for me to find a few things out about modeling and simulation. Your simulation is only as good as your models. If you leave one iota of information out of your models, the simulation might look perfectly good. You build the circuit, it doesn't work, and THEN you find out your model was flawed.
What cooked me was the assertion that science has concluded global warming is human caused and that there is a human solution when I know that scientists are operating with extremely complex models, may be totally lacking some important models in their simulations, and those models have interactive elements that would dramatically change the behavior of the system with just a small error being introduced.
The "Global Warming" scare is being pushed universally by leftists and socialists. Why? Because their "solution" is to take energy/production from the wealthy countries and give it to the 2nd and 3rd world countries.
If they said "We are going to freeze GHG production on ALL countries to exactly what it is today", the USA would have an advantage. So they won't. They have to take away our advantage and that is more important than reducing GHG to them.