Samakinwa et al. (2026) Mean-state warming loads Germany’s extreme summer heat burden

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Environmental Research Letters
• Year: 2026
• Date: 2026-09-09
• Authors: Eric Samakinwa, Leon Scheiber, Jan-Christopher Cohrs, Susanne Pfeifer, Diana Rechid
• DOI: 10.1088/1748-9326/aea4c9

Research Groups

• Max Planck Institute for Meteorology (MPI-M)
• University of Hamburg, Department of Earth Sciences

Short Summary

This study develops an observation-based framework to quantify how global warming increases Germany's extreme summer heat burden and explores the scaling of this risk with global-warming level.

Objective

• Investigate the relationship between mean-state warming and extreme summer heat in Germany
• Quantify the sensitivity of local summer temperatures to global mean surface temperature

Study Configuration

• Spatial Scale: National scale (Germany)
• Temporal Scale: 2004–2024 study period, with a focus on selected extreme summers (2018, 2019, and 2022)

Methodology and Data

• Models used: Observation-based mean-shift (OMS) framework
• Data sources: Observed daily temperature series from 1991 to 2020

Main Results

• Estimated sensitivity of local summer warming to global warming: 2.63 °C per 1 °C of global warming (95% confidence interval: 1.62–3.62)
• Significant increase in extreme-heat burden (EHD) from pre-industrial to present-day conditions, with further marked increases toward +1.5 °C and +2.0 °C
• Substantial heterogeneity in EHD magnitude across federal states

Contributions

• Provides a transparent basis for heat-risk planning and adaptation by separating the realized anthropogenic contribution from the additional mean-state burden associated with higher GWLs
• Offers a novel framework (OMS) to quantify the impact of global warming on extreme summer heat events

Funding

• Not specified in the provided text

Citation

@article{Samakinwa2026Meanstate,
  author = {Samakinwa, Eric and Scheiber, Leon and Cohrs, Jan-Christopher and Pfeifer, Susanne and Rechid, Diana},
  title = {Mean-state warming loads Germany’s extreme summer heat burden},
  journal = {Environmental Research Letters},
  year = {2026},
  doi = {10.1088/1748-9326/aea4c9},
  url = {https://doi.org/10.1088/1748-9326/aea4c9}
}