Richard Lindzen is not only a renowned climate scientist but also an experienced person who has met many people and understood how many institutions work. In his new, published 35-page paper that is also available via the arXiv,
For a few decades, the discipline has been losing the creative confrontation between theory and observations and the standard practice of compact problem solving that can lead to results in a finite time. Instead, unconfrontational huge observational projects that never end and simulation took over. The amount and importance of bureaucracy has skyrocketed, a development that has affected many other disciplines, too. This has allowed various players to consciously politicize the field which is particularly important in the case of climatology.
Lindzen writes long and exciting pages about various, very specific examples of activists who have been promoted for political reasons and who help to cripple the objective character of climatology. You will learn what is happening with those scientists who are not "politically correct" in these matters and how the skeptical positions of late scientists are posthumously altered. It may be a scary reading but Richard Lindzen presents the story very calmly and rationally. Recommended!
Off-topic, for economy junkies: CSPAN-3 broadcasts the Senate grilling of Bernanke, Cox, and Paulson.