This is the best tl;dr I could make, original
reduced by 87%. (I’m a bot)
More than 5 million people die each year globally because of excessively hot or cold conditions, a 20-year study has found – and heat-related deaths are on the rise.
The study involving dozens of scientists around the world found that 9.4% of global deaths each year are attributable to heat or cold exposure, equivalent to 74 extra deaths per 100,000 people.
The study, published in the journal the Lancet Planetary Health, took into account the differing optimal temperatures for people living in different regions.