The link below explains the scientific process quickly and clearly,  It therefore, shows the error in climate change science, Simply stated, there is no evidence to support the claims that man-made co2 causes warming or that there has, in deed, been any warming. Absent evidence, there is no supportable theory of climate change.
http://www.americanthinker.com/2014/09/global_warming_and_the_feynman_test.html