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Heat Index in Brazil Hits 137F (58.5C)
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this post was submitted on 16 Nov 2023
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They have clearly linked their source as BBC. Also, pretty much all major publications have reported on it. Here's a report by AP: https://apnews.com/article/brazil-heat-wave-climate-environment-wildfires-1e4714fb2c6566120c13cf4e2b657f7d
https://www.bbc.com/news/world-latin-america-67422663?ref=okdoomer.io
I think what matters here is that the humidity makes this a wet bulb or something similar to a wet bulb instead of actually an oven. It's super doom but it's a slightly different and honestly worse kind.
Today's high temp and humidity in Rio gives them a Wet Bulb Globe Temperature of 77⁰F, which is not great. WBGT of 80⁰-90⁰F is the danger zone, and recent research has suggested that WBGT 85⁰ is probably a more realistic upper limit of human safety.
Sources if you would like to do some doom math yourself:
https://www.wunderground.com/weather/br/rio-de-janeiro
https://www.omnicalculator.com/physics/wet-bulb
https://nicholasinstitute.duke.edu/project/heat-policy-innovation-hub/what-is-wet-bulb-globe-temperature-wbgt#:~:text=Typically%2C%20any%20WBGT%20above%2090,to%20protect%20against%20heat%20stress.
https://journals.physiology.org/doi/full/10.1152/japplphysiol.00738.2021
We definitely are! It's been a week since I got some sleep ... It's been 37°C to 40°C every day in my city and most people don't even have AC... I don't..
Which is also already deadly.