Briefing: North America 'heat dome' left winners and losers: Study

The 2021 heat wave, often referred to as a 'heat dome', had significant implications for North American ecosystems, as reported by a study published on March 15, 2026.

The extreme temperatures resulted in the deaths of billions of mussels, indicating a critical stress on marine biodiversity. Additionally, the heat caused young birds to fall from nests, highlighting vulnerabilities in avian populations.

The findings underscore the need for improved infrastructure to mitigate such extreme weather events and their cascading effects on ecological systems.