In the fall of 2012 the Met office released a report that stated global warming had staled for the last 16 years.
“The world stopped getting warmer almost 16 years ago, according to new data released last week.
The figures, which have triggered debate among climate scientists, reveal that from the beginning of 1997 until August 2012, there was no discernible rise in aggregate global temperatures.
This means that the ‘plateau’ or ‘pause’ in global warming has now lasted for about the same time as the previous period when temperatures rose, 1980 to 1996. Before that, temperatures had been stable or declining for about 40 years.”
Shortly after the release, Nasa’s James Hansen acknowledged that global temperatures have not risen for more than a decade.
“THE UN’s climate change chief, Rajendra Pachauri, has acknowledged a 17-year pause in global temperature rises, confirmed recently by Britain’s Met Office, but said it would need to last “30 to 40 years at least” to break the long-term global warming trend.”
So in essence their stance is that global warming has stopped, but needs to continue the non warming trend for twice as along (and twice as long as the previous warming trend 1980 – 1996) to break the trend.