Spencer: 'What that means is that it's time for them to re-evaluate.' -- 'The IPCC's claim is that they are 90 percent sure that humans have 'contributed to' the observed warming. Hell, even I would agree with that innocuous statement.' -- 'It is evidence that CO2 is not nearly as strong a climate driver as the IPCC has been assuming. This is the possibility they do not allow to be considered, because it would end all of their policy-changing goals'