Thermal images taken on London Underground reveal temperatures of up to 42°C
25 Jul 2019
Mirror Online
![Thermal images taken on London Underground reveal temperatures of up to 42C](/thumb/phpThumb.php?src=%2Fuploads%2Fnews%2F1%2F172%2F3%2F172367-thermal-images-taken-on-london-underground-reveal-temperatures-of-up-to-42c.jpg&w=750&hash=444a5a3158756347bcbfaaa1c57bcb9f)
Experts from FLIR have taken thermal images on several of the London Underground tube lines, to show just how hot it is down there.