Please don't confuse the heat in Death Valley with humid heat. Don't get me wrong, that Death Valley heat will kill you, but as long as you have water and shade you will survive.
dear fact-impaired readers - global temperature records are carefully kept by a multitude of authoritative sources, and increasingly so..
the Year 2023 was the Hottest Year on Record to date globally.. each month of 2023 (edit maybe not jan-feb?) was also the hottest recorded globally. The hottest day cumulatively across the world was in 2023. The nine hottest years on record globally were the last nine years.
Please use librarianship and science skills for factual information. multiple references available for the search-impaired
I assume that you're alluding to the air conditioner, which was invented in 1901? The first home installation was in 1914, but that wasn't the date of the invention.
For example, at least 24500 people died from heat-related causes in Europe during heat waves of summer 2022.
And that's just one of many examples.