(I guess tolerating opposing viewpoints is intolerable)
The hypocrisy of liberals knows no bounds. They're all for diversity, tolerance, etc., etc. when it comes to pushing their views, but if you don't toe the line on one of their favorite pet theories -- look out.
Here is an interesting piece from the New York Sun on the efforts by proponents of global warming to not only attack, but suppress those who dare to disagree:
The debate over global warming has turned hysterical in the wake of the Democratic takeover of Congress and the most recent United Nations report asserting a 90% likelihood of human-caused climate change. And anybody who disagrees had better be prepared for attacks on their scientific credentials, their honesty, and even their right to speak out.