Some previous posts dealing with another Lewandowsky paper:
Global warming 'hiatus' never happened, Stanford scientists say
By Ker Than - Stanford Report, September 17, 2015
A new study reveals that the evidence for a recent pause in the rate of global warming lacks a sound statistical basis. The finding highlights the importance of using appropriate statistical techniques and should improve confidence in climate model projections. Studies had suggested that global warming slowed or paused since 1998. More thorough research shows the global warming “hiatus” likely never happened.