I can't say that I ever thought it was a good idea to make predictions that stated that X would happen by such and such a date. While the trend is clear and the scientific reality of what happens when more CO2 is introduced into a planetary atmosphere has never been in dispute, specific predictions are generally not a great idea. However, I will add a caveat. Most of the predictions of the last few years have fallen far short of the true speed of the warming and the effects of that warming.
I must also add the following comment.
Sometimes I just can't help but laugh at conservatives and some of their silly and wholly illogical arguments. Want an example? The radio reactionary, Mark Levin, when dismissing labeling CO2 as a pollutant (actually, concentrations of 7-10% can, in fact, cause unconsciousness within an hour), added that if it wasn't for CO2, the world would be a frozen ball with temperatures in the triple digits below zero. Does everyone understand the implications? Our greenhouse gases are the reason why Earth has a habitable climate. In the case of CO2, our current levels of the gas are in the general vicinity of .04% which translates to 400 parts per million or 4 parts per 10,000. Not much, right? But LOOK at the effect!!! It's the difference between a frozen planet with no life and a lush planet full of life. What we're doing now is jacking up the rate of CO2 (in the early 19th century, the rate was below 300 ppm).
Now, think! If CO2 is responsible for keeping the planet warm, and we as a species are digging up carbon and burning it, thereby increasing the amount in the atmosphere by over 1/3 in the last 200 years, and the rate of fossil fuel usage is only rising due to a radical increase in the world population, and industrialization ,and the increase in the use of automobiles and electricity, what do you think is going to happen, all other things being equal?