Ian Musgrave

Ian Musgrave explains how the Snowball Earth proves the opposite of what Christopher monckton claimed: Moncktons' claim that this shows that climate sensitivity to CO2 must be low in this scenario is dead wrong, in fact simulations show that with the sensitivity most researchers claim for CO2, you still need a huge amount of CO2 to melt a Snowball Earth with a fainter Sun (1,2 and the measured CO2 after the glaciation ended was around 12,000 ppm, not 300,000 as was apparently claimed in Moncktons' talk, 3). With a low climate sensitivity, the Earth would never unfreeze.