from your post... this is what is different... "Models predict that Earth will warm between 2 and 6 degrees Celsius in the next century. When global warming has happened at various times in the past two million years, it has taken the planet about 5,000 years to warm 5 degrees. The predicted rate of warming for the next century is at least 20 times faster. This rate of change is extremely unusual." -- Models don't actually "predict" they model scenarios base don the input. The input is the scientists pick is that increased co2 causes warming. That is an input... not a scientific finding.
a la nina may be forming.... Meteorological agencies like NOAA use the sea surface temperature anomalies of the NINO3.4 region (5S-5N, 170W-120W) of the equatorial Pacific to determine if the tropical Pacific is experiencing El Niño, La Niña or ENSO neutral (not El Niño, not La Niña) conditions. Other agencies use the sea surface temperature data for the NINO3 region (5S-5N, 150W-90W). See the map on the NOAA webpage here for those locations. Based NOAA’s weekly data for the NINO3.4 and NINO3 regions (data here), during the week centered on July 13, 2016, the sea surface temperature anomalies for both regions dropped to -0.6 deg C, which is a tick below the -0.5 deg C threshold of La Niña conditions. See Figures 1 and 2. If the sea surface temperature anomalies of the NINO3.4 region continue to stay depressed for a good number of months, NOAA will declare an “official” La Niña is taking place. Like El Niños, La Niñas typically peak in November through January, so there’s a long way to go. see charts at the link... https://wattsupwiththat.com/2016/07/18/say-hello-to-la-nina-conditions/