Whenever you see these kinds of articles about us heating up, they ALWAYS are talking about SURFACE TEMPERATURE, which is a red herring and not to be trusted. It’s a complete scam.
http://www.surfacestations.org/
In other climate studies they use all kinds of inferred data to make their point. Why suddenly begin using data only going back 135 years.
There is plenty of recorded human history that suggest that the Earth has been much warmer and much cooler than current global temperatures.