NEW DELHI — What's up with journalists in the mainstream media? In most cases, they tend to be unconditional supporters of free expression and strive to report on controversial views.

However, reporting on issues relating to global warming has become strikingly one-sided. With no need to persuade using rational argument, a new conventional wisdom is being formulated that is beyond challenge by "sensible" people.

Creating group-think and mass behavior should be anathema to honest journalists. Otherwise, reporters become opinion makers rather than neutral observers.