Tony Heller posting on RealClimateScience.com shows how the global temperature increase is indeed man-made. Man-made as in “man”ipulating the data. Heller says NASA has changed the data over the past 15 years so that it now shows the year 2001 is about 0.2°C higher on the NASA 2016 chart than it was on NASA’s 2001 chart.
And you can note that the 1880 temperature anomaly was made colder by 0.3°C between the 2001 and the 2016 charts. Those two changes increase the amount of “man-made” warming by about 0.5°C over those years.
The warmers have also been waring against the satellite temperature measurements saying they are in error. But the weather balloons temperature measurements confirm the satellite’s temperature measurements. There are no independent checks on the NASA system (GISS) or other surface measuring systems.
The chart below show the temperatures by year for the period from 2000 to 2016 using RSS satellite and GISS temperatures and the temperature trends for those years.
Note that while the surface measuring GISS shows warming, the RSS satellite system show a cooling trend.
Heller says “The fact that the US space agency is ignoring satellite data, is a pretty strong indication that the agency has collapsed into a hopelessly corrupt and decadent state”.