It’s not the temperature that kills; it’s the inability to sweat. Everything you need to understand the risk.
1. Climate denial will kill you faster. If you think climate change is BS, this post isn’t for you.
2. A wet bulb thermometer, or a thermometer and hygrometer. I have an Inkbird with a Bluetooth wireless app.
3. A Wet Bulb Chart. You can download them here: https://arielschecklist.com/wbgt-chart/
If you understand how to read tables, then you can read a wet-bulb table. The figures in the yellow and red boxes indicate danger; what about the figures in the black? Potentially lethal. Potentially lethal means is that if you can manually cool yourself, you have a good chance of survival. Manual cooling means a method of cooling off which does not involve risking your life, for example, “Tombstoning” into cold water. Already, the May Heatwave has brought tragedy.
Another wet bulb temperature was logged in Oxfordshire on 19/06/2026. The NEB will continue to tell you that these temperatures are mostly in South Asia
Manual Cooling or Hyperthermia.
Hyperthermia is a physiological illness that begins when the body cannot cool with sweating alone. It is potentially lethal. It is a poorly understood illness among people who use the outdoors for leisure and professionally, like expedition leaders, and until recently, the UK military. The UK MOD understands that climate change adaptation is a tactical advantage. For Military Manouvres, Exercises, Selection and outdoor physical activity expected to take place during a heatwave, the UK MOD protects the troops with a mandatory wet bulb policy involving the measurement of the temperature and humidity throughout the event to ensure that there is no repeat of the 2013 incident, during which soldiers on exercise on the Brecon Beacons died from heat illness. People still think the Welsh mountains are more likely to give you hypothermia.
Hyperthermia is a poorly understood illness. You cannot push through it. People suffering from hyperthermia lose agency quickly and will do whatever they are told or is demanded of them. You can be fully hydrated and still die from hyperthermia under wet-bulb conditions because sweating ceases to evaporate into a saturated atmosphere. First Aid courses do not teach us how to care for people beginning to show signs of heat exhaustion. Sometimes we don’t know about self-care; most of the time, it’s difficult to judge. Most dangerous is not knowing and then undertaking some form of strenuous activity that gets us into difficulty. Early-stage heat illness treatment is simple but requires escape from the heat.
Heat stress and heat stroke are also often related to physical exertion, but wet-bulb temperature can make even no activity feel exhausting and uncomfortable. If your body temperature starts to climb and you’re unable to cool yourself through sweating, you’re experiencing heat stress. Heat stress can lead to serious complications, such as heat exhaustion and heat stroke.
In addition to feeling uncomfortably hot, you may also experience:
- dizziness
- weakness
- nausea
- thirst
- a headache
Self and rescue of others:
- Get Out of the Heat: Move the person to an air-conditioned room or deep shade immediately.
- Position for Comfort: Have them lie down with their legs slightly elevated to aid blood flow.
- Remove Outer Clothing: Take off unnecessary layers to let the skin release trapped body heat.
- Hydrate Slowly: Sip cool water or electrolyte-rich sports drinks, or fruit juice. Avoid alcohol or caffeinated beverages, as they contribute to dehydration.
- Apply Cold Compresses: Wrap ice packs in a cloth and place them under the armpits, around the neck, and in the groin area to quickly lower core temperature.
- Evaporative Cooling: Use a spray bottle or wet sponge to apply cool water to the skin while a fan blows air over the person.
Worsening symptoms will require immediate critical medical care because heat illness is potentially life-threatening.
Acclimatisation Is Not An Argument Against Vigilance
Everyone has a story about how they survived a sauna or lived in a hot country. Climate Change means times change.
“Between 2000–2019 studies show approximately 489 000 heat-related deaths occur each year, with 45% of these in Asia and 36% in Europe (2). In Europe alone in the summer of 2022, an estimated 61 672 heat-related excess deaths occurred (3). High-intensity heatwave events can bring high acute mortality; in 2003, 70 000 people in Europe died as a result of the June–August event. In 2010, 56 000 excess deaths occurred during a 44–day heatwave in the Russian Federation.” https://www.who.int/news-room/fact-sheets/detail/climate-change-heat-and-health
This is how the rest of the world is dying. This is how we know we are the lethal part of overshoot-driven civilisation collapse.
About me and stay connected with all my content.
Doomers For A Future, Think of it as a Zen Quoan.
SolidarityPrepping is a decentralised, federated community of like-minded anti-fascists and former climate activists. Many of us have lived off-grid and are homesteading. #SolidarityPrepping supports the work of Team Collapse and Dr Tadzio Mueller in Europe and shares the same ethos.
I had spent several years in deep conversation with the late Tristan Sykes from Just Collapse.
Solidarity prepping is common-sense climate preparedness. It costs me about £100/ years to run all this. I have a full-time job, and I fit all the rest around this. If you find my work useful, support me?
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