It is pity that most of climate change deniers do not know what they are talking about: current climate change prediction is based on various observation from ice cores and many other data as well as simulations. The climate-gate is nothing but a hoax which found nothing scientifically relevant to negate the scientific claims they made. Emails leaked from the deniers would be mush more colourful and insightful about their activities.
I just list books which deniers like but essentially miss the points of the current issues.
These are based on some facts but their extrapolation to the climate change is wrong and misleading.