a) Not a clearly stated assumption set underlying the graphics
b) Relying too much on the past 100 years to be an empirical estimator of the next 100 years.
c) A fuller discussion of the probable weaknesses of the models was also in order.
d) Pay better attention to the presentations before yours so that you can, on the fly, state whether your model agrees or disagrees with the previous, or is better than the previous.