Sorry but you are simply wrong. Tony Heller (your first video) has been debunked so many times it's a wonder he still makes videos. If you want to say GISS data

Sorry but you are simply wrong. Tony Heller (your first video) has been debunked so many times it's a wonder he still makes videos. If you want to say GISS data is manipulated, please come up with solid evidence from peer reviewed sources. Their methods have been thoroughly peer reviewed, something that cannot be said of Tony Heller. Why did they hire Leonard Nimoy, not an actual climate scientist? The doomsday ice age scare of the 70s has been exaggerated to the point of breaking. The vast majority of scientific papers in those times showed global warming is the issue. There was some cooling starting in the 40s, mainly due to aerosol pollution of the atmosphere. This issue was tackled. Now we're left with CO2 and other greenhouse gases. As for the temperature records, please look up how temperature proxies (tree rings, ice cores...) can be used to reconstruct global temperature. It's not like we know the temperature from 2000 years ago because the Romans had a notebook and measurement stations spanning the globe.