The Lamen
Physicists have made it pretty clear: the past of the cosmos was hotter and the future will be colder. But even the extreme heat felt today is significantly hotter than what the “early humans” experienced. And the general consensus is, climate change is the one big thing to blame.
via Pawel Czerwinski/Unsplash
Only a few weeks into the summer and hundreds of millions are enduring sweltering heat waves. As scorching heat raises alarm across the world, a new study published in Nature Medicine this Monday suggests that over 61,000 people died from Europe’s record-breaking summer last year.
Data-driven: Over the 35 European countries analyzed, the summer of 2022 was the warmest ever on record, over 0.4°C warmer than the summer of the previous year and 1.4°C hotter than average.
The highest heat-related mortality rates were found in Italy, Spain, Greece, and Portugal, which have been linked with the effect of the Mediterranean, which scientists suggest is a literal hot spot.
Noteworthy: European countries prepared the so-called “heat health action plan,” developed after the impact of the deadly heat wave of 2003, but researchers highlight that last year’s deaths indicate that these strategies are not sufficient to prevent mass casualties.
Populations in Southern Europe will be more frequently exposed to extreme summer conditions and experience greater heat-related deaths in the future, researchers suggest. As a consequence, they suggest reevaluation and strengthening of heat surveillance platforms, prevention plans, and long-term coping strategies.
European land temperatures have increased faster than the global mean surface temperatures between 2013 and 2022, exhibiting anomalous behavior due to a combination of its geography and the impact of human-induced climate change. Some estimates suggest that with a 3°C warming above pre-industrial levels, 90,000 people in Europe could die from extreme heat annually.
Graphic by EFFIS
Our bodies are in a constant state of heat exchange, maintaining an internal temperature of 37°C (98.6°F). Problems really start when there’s not enough heat or too much of it, and our body eventually cannot keep up.
Heat is the greatest weather-related killer in the United States, and here’s an account of what your body goes through when exposed to high temperatures for extended durations.
A study from 2017 suggests that 30 percent of the world’s population is exposed to climate conditions exceeding the deadly threshold for at least 20 days a year. In addition, it predicts that this number would increase to 48 percent by 2100 even under the scenario of “drastic reductions” of greenhouse emissions.
Heat-related illness quickly progresses from moderate discomfort to a life-threatening situation. Humans can take anywhere from a few days to several weeks to get acclimatized to increased heat: with adaptations like more frequent sweating and decreased electrolyte loss.
However, there will always remain an evolutionary limit to heat acclimatization when conditions go beyond what normal human physiology can endure – which means that you need to learn how to cope with extreme heat.
A guidebook to help city officials manage heat waves issued by the International Federation of Red Cross and Red Crescent societies includes policy recommendations like:
The effects of human-induced climate change are expected to be felt even more strongly this year, as the summer coincides with El Niño, the effects of which have already been felt in Asia and Africa, with climate change reportedly making the Horn of Africa drought “100 times more likely.”