The inconsistency between observed and simulated global warming
is even more striking for temperature trends computed over the past
fifteen years (1998–2012). For this period, the observed trend of
0.05 ± 0.08 °C per decade is more than four times smaller than the
average simulated trend of 0.21 ± 0.03 °C per decade. It is
worth noting that the observed trend over this period — not
significantly different from zero — suggests a temporary ‘hiatus’
in global warming. (emphasis added).
The article concludes:
Ultimately the causes of this inconsistency will only be
understood after careful comparison of simulated internal climate
variability and climate model forcings with observations from the
past two decades, and by waiting to see how global temperature
responds over the coming decades.
It seems to me what the researchers are saying in so many words
is that the current batch of climate models have not been validated
using actual temperature trends
The junk science hysterics pushing the global warming scam have never constructed a model that accuerately predicted anything.
If this crap were anything other than a sect of the Politically Correct Religion, it would have been hooted out of the public square years ago.