Compound coastal marine-terrestrial heatwaves associated with humid-heat stress in Europe.

ABSTRACT: European coastal regions - home to dense populations, and climate-sensitive ecosystems - are vulnerable to the compounding effects of marine-terrestrial heatwaves, defined here as concurrent extreme heat events over land and adjacent ocean areas. Using satellite and station-based observations, we find a nonlinear and accelerating increase in exposure to these compound events across European coastlines over the past two decades, peaking at 78 days in the Mediterranean in 2022. Attribution analysis reveals that greenhouse gas (GHG) forcing accounts for 95% of the risk of the 2022 event, and the CESM1-LE simulations indicate that such an event would be virtually absent without GHG forcing, emphasizing the nonlinear escalation of risk as GHG emissions continue. We further demonstrate that simu

SUBMITTER: Barkhordarian A 

PROVIDER: S-EPMC12706064 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature