Warmists Wigley and Santer: You know how much of the 1950-2005 warming was caused by greenhouse gases? 160%

Wigley and Santer Find the IPCC is too Conservative on AGW

Thus quite contrary to the myth that the IPCC is "alarmist", WS12 finds that the IPCC has been far too conservative in attributing the observed global warming to human greenhouse gas emissions. In fact their central estimate is that humans are responsible for 100% of the observed global warming for the 1950–2005 timeframe, with greenhouse gases responsible for 160%

Does this mean that you don't have to be "anti-science" to disagree with something that the IPCC says?