‘Those under the impression that climate change is advancing at a constant and predictable rate don’t understand the true dynamics of the issue. The rate of increase of the carbon dioxide concentration in the atmosphere, the main driver of climate change, went from 0.75 parts per million ppm per year in 1959 to about 1.5 ppm each year through the 1990s, to 2.1 ppm each year from 2002 to 2012, and finally to 2.9 ppm in 2013.’
via Nonlinear: New York, London, Shanghai underwater in 50 years?.