Climate scientists at the National Oceanic and Atmospheric Administration manipulated temperature data to make it look like the rate of global warming is speeding up after 2000. Their study published in 2015 in Science called into question the existence of the 17-year long “hiatus” during which the increase in global average temperature had significantly slowed. In its 2013 comprehensive Fifth Assessment Report, even the Intergovernmental Panel on Climate Change noted, “The rate of warming of the observed global mean surface temperature over the period from 1998 to 2012 is estimated to be around one-third to one-half of the trend over the period from 1951 to 2012.” The NOAA study instead found that the oceans are warming at 0.12 degrees Celsius (0.22 degrees Fahrenheit) per decade since 2000, which is nearly twice as fast as earlier estimates of 0.07 degrees Celsius per decade. This rate is similar the warming that occurred between 1970 and 1999.
Read more at: NOT Settled Science