I have written for quite a while that the most important issue in evaluating catastrophic global warming forecasts is feedback. (climate-skeptic.com)
What this means is that 70 - 80 % or more of the warming in catastrophic warming forecasts comes from feedback, not CO2 acting alone. (climate-skeptic.com)
Even if the highest warming forecast comes true and the temperature rises by 3 - 6 degrees, no more than 20 meters of frozen ground will melt. (sputniknews.com)