For scientists to remain credible, they have to have a certain detachment from their work. At the very least, they have to have no vested interests in any particular outcome, or they risk biasing their work to produce outcomes favorable to themselves. On anthropogenic global warming, we already have advocates like Al Gore who stand to make billions of dollars by convincing governments to impose cap-and-trade systems that will rely on their businesses for the service — but advocates aren’t scientists. However, the Telegraph reports today that Dr. Rajendra Pachauri, the head of the UN’s Intergovernmental Panel on Climate Change...