Heat & survival: African Wild Asses vs Wet-Bulb Temps.
Hunting was the old threat. Now, they fight livestock for shrinking waterholes. We can hide indoors, but they just wait in the shade. Suffocating heat is choking them.
When does this heat break us? Working outside in summer might soon be impossible.
(Open the toggles in the blog to read in English!)

Read more✨
https://fukumomo3-redlist.com/redlist-after-11-years-african-wild-ass/
#AfricanWildAss #ClimateCrisis #WetBulb

Forget #HeatIndex. #WetBulb Globe Temperature Is Where It’s At.

"One of the most common terms we hear during the summer when discussing the weather is Heat Index. While the Heat Index can give you an idea of how dangerous the heat can be, there is another lesser known variable that may give a complete description, known as the #WetBulbGlobeTemperature.

"The Heat Index is a measure of how hot it feels to the human body, taking into account the temperature and the relative humidity. The higher either one value is, the higher the heat index and the greater the stress exerted on the body. Heat Index utilizes the temperature measured in the shade and therefore will likely be greater in the sun, where many activities take place. For temperatures taken in the full sunlight, Heat Indices can increase as much as 15°F. Humidity plays a major effect on cooling the body. If the humidity is high, sweat on the surface of the skin does not evaporate as quickly, slowing the cooling of the body. If the humidity is low, sweat evaporates too fast, leading to dehydration. [See link for Heat Index chart]

"Wet Bulb Globe Temperature (#WBGT) is similar to the Heat Index in that it is an indicator of the stress on the body from the heat. While it is not as well-known as the Heat Index, it’s not a new term. WBGT was developed in the 1950s after heat related illnesses affected the US armed services during the 1940s. After its implementation, there was a reduction in heat related illnesses during basic training. One fundamental difference between the Heat Index and WBGT is that the latter is calculated with the temperature measured in the sun. While Heat Index only takes temperature and Relative Humidity into account, WBGT takes several variables into account.

These variables include:

- Temperature
- Humidity
- Wind Speed
- Sun Angle
- Cloud Cover
- Physical Activity"

Read more:
https://www.dtn.com/forget-heat-index-wet-bulb-globe-temperature-is-where-its-at/

#WetBulbTemperatures #GlobalWarming #HighHumidity #ExtremeHumidity #Heatwaves

#HeatIndex versus #WetBulb temperatures

The world needs a new way to talk about heat

by Michael J. Coren
July 25, 2023

"[The heat index] warning system is not perfect. First, it assumes you’re resting in the shade, not working in the sun. If you’re exerting yourself outdoors, the effective heat index could be 15 degrees higher. Secondly, the heat index was built on the idea of a young and healthy adult — a bad assumption for the elderly, very young and sick."

Read more:
https://www.washingtonpost.com/climate-environment/2023/07/25/heat-index-wet-bulb-temperatures-dangerous/

Archived version:
https://archive.ph/rwMSE

#ExtremeHeat #ExtremeHumidity #WetBulbTemperatures #ClimateChange #GlobalWarming