Hottest year in recorded history compounds global biodiversity risks.
Where this comes from
- Record sourced from PubMed, PMID 40854135.
- Also identified by DOI 10.1073/pnas.2504945122 and PMC identifier 12415292.
- Licence recorded as CC BY-NC-ND.
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Abstract
As climate change accelerates, effectively monitoring and managing the growing impacts on biodiversity is an urgent priority. Here, we identify the exposure of species to unprecedented heat to evaluate the potential impact of 2024-the hottest year on record-across >33,000 vertebrate species worldwide. One in six (5,368) species were exposed to unprecedented temperatures across >25% of their range-68% more species than in 2023. Most (81%) species exposed in 2023 were also exposed in 2024, potentially compounding risks. For the first time, widespread species were exposed to extreme temperatures across >10% of their ranges. We propose using these exposure estimates to inform monitoring and mitigation efforts to avoid the worst impacts of climate change.
Medical subject headings
- Biodiversity
- Climate Change
- Hot Temperature
- Vertebrates