Comments by "Old Scientist" (@OldScientist) on "Phoenix heat shatters records after 19th day of 110+ degree temperatures" video.

This is nonsense. It was hotter in the recent and distant past. There is no satellite data before 1979, and there was no real network of temperature stations outside Europe and America before the 1950s, so "hottest ever" is not very long! It was much hotter in America in the 1930s, and the Vikings grew barley on Greenland, which is impossible today. This is bull meant to scare people into giving up their prosperity. Satellite data shows the Earth is continuing to warm at around one-tenth of a degree Celsius per decade. If we didn't have thermometers we couldn't even notice it.
2
@lepidoptera9337 It's the "recorded" word that's most important there. Although Phoenix was incorporated in 1881, NOAA only has continuous data from around 1940. So recorded history for Phoenix in this instance is about 80 years (not that long climatically) and the record for 1930s (when heatwaves were worse) is mostly incomplete. Also Phoenix's population has expanded exponentially in that time from a few tens of thousands to a few million. This has dramatically increased the Urban Heat Island effect resulting in temperatures 10°F (5°C) higher during the day (Scientific American, 2019). This alone explains the record high temperatures. As I'm sure you're aware, Phoenix is in the Sonoran desert, which is characterised by long summers and extremely high temperatures. And that's exactly what's happening. There's nothing unusual or unexpected here. The news story is purposely catatrophising the weather to unnecessarily scare people into changing their way of life. There is no global climate crisis.
2