Heat waves have dominated headlines across the Northern Hemisphere this summer, and as a scientist, I’ve been curious about what’s actually happening atmospherically, physiologically, and industrially as record temperatures intersect with the regions where much of our industry’s manufacturing takes place. It’s worth noting this isn’t only a Northern Hemisphere story. The Southern Hemisphere had its own record-breaking heat wave during its summer months in early 2026, with Australia, South Africa, and parts of South America all high temperatures. This week’s three reads span the science of heat waves, how rising heat is reshaping workforce protection ahead of a looming “super El Nino,” and how extreme heat impacts the power grid that the electronics supply chain relies on to function.

Too Hot for Work: Why Extreme Heat Is a Threat to Europe’s Productivity

This article reports on how record heat is forcing European employers, including factories, construction sites – and breweries –to rethink schedules, breaks, and cooling measures. New research highlighted in this article indicates that France, Italy, and Spain could collectively lose hundreds of billions in economic output through 2030 due to heat-related productivity losses. It’s a grounded look at how heat resilience is becoming less of a seasonal inconvenience and more of a standing operational and economic challenge for businesses.