The Guardian has thrown all my preconceptions into disarray by printing an article about sceptics that is not only thoughtful, but is polite too!
Sceptics such as Andrew Montford and Anthony Watts agree with the mainstream view that the greenhouse effect brings about atmospheric warming as a result of carbon emissions, but dispute levels of climate sensitivity. However, others offer far more fundamental challenges to climate science, such as fringe sceptic group Principia Scientific whoreject this orthodox view of atmospheric physics.