There was a world record high temperature reported in Algeria a few years back. Turns out the weather station was situated at an airport, on or close to the tarmac where jet airplanes shot their hot exhaust at the area.
There are standards for weather stations, such as fresh white paint, size and shape of the containing box, louvers, situated with grass around it, no artificial heat sources nearby, etc etc etc. Something like 90-95% of Britain's weather stations violate those standards, some so badly that they are rated as only being within 5 degrees of correct. Britain was also reporting record high temperatures for weather stations that haven't existed for decades; they average other weather stations within 50 miles to create fake weather station data.
These same patterns show up in the US and other countries. The reported "record high temperatures" are nothing of the sort.
Again: people don't lie like this when they have truth on their side. They not only don't need to, they know that lies ruin their reputations. These alarmists don't seem to mind being caught in such egregious lies. Apparently they don't mind having shit reputations.