Climate Attribution

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Human-induced climate change compounded by socio-economic water stressors increased severity of drought in Syria, Iraq and Iran

November 2023
Friederike E. L. Otto, Ben Clarke, Mohammad Rahimi, Mariam Zachariah, Clair Barnes, Joyce Kimutai, Simphiwe Stewart, Maja Vahlberg, Abhinav Banthiya, Rana El Hajj
Grantham Institute for Climate Change
In this event study, the authors combine observations-based data products and climate models to assess the impact of climate change on a three-year drought across Iran, Iraq, and Syria.Read More →

Regional but not global temperature variability underestimated by climate models at supradecadal timescales

November 2023
T. Laepple, E. Ziegler, N. Weitzel, R. Hébert, B. Ellerhoff, P. Schoch, B. Martrat, O. Bothe, E. Moreno-Chamarro, M. Chevalier, A. Herbert, K. Rehfeld
Nature Geoscience
This peer-reviewed study reviews the evidence regarding the scale of natural temperature variability during recent millennia, and concludes that existing models may underestimate regional variability in climate outcomes over multi-decadal timescales.Read More →

Mercury and CO2 emissions from artisanal gold mining in Brazilian Amazon rainforest

November 2023
Benjamin Fritz, Bernhard Peregovich, Lorena da Silva Tenório, Adria Cristina da Silva Alves, Mario Schmidt
Nature Sustainability
In this peer-reviewed study, the authors investigate the use of mercury and energy at artisanal gold mining sites in Brazil, and assesses the mercury and CO2 emissions associated with this sector of the informal economy.Read More →

Exponential increases in high-temperature extremes in North America

November 2023
Ali Davariashtiyani, Mohsen Taherkhani, Seyyedfaridoddin Fattahpour, Sean Vitousek
Nature Scientific Reports
This peer-reviewed study investigates continuous shifts in the frequency of extreme high-temperature events due to projected local warming trends, and finds that the odds of passing 50-year extreme high-temperatures doubles every 20 years. Read More →

Steady global surface warming from 1973 to 2022 but increased warming rate after 1990

November 2023
B. H. Samset, C. Zhou, J. S. Fuglestvedt, M. T. Lund, J. Marotzke, M. D. Zelinka
Nature Communications Earth & Environment
This peer-reviewed study finds that the surface temperature increase through the recent La Nina influenced years (2022) is consistent with the 50-year trend of 0.18 °C/decade, but also finds a step-up in warming rate since 1990.Read More →

Attribution of Extreme Events to Climate Change

November 2023
Friederike E.L. Otto
Annual Review of Environment and Resources
This review focuses on extreme event attribution as a significant aspect of climate science, thereby informing policymakers and the public. It highlights ethical considerations and the need for more research in the Global South.Read More →

Causes of 2022 Pakistan flooding and its linkage with China and Europe heatwaves

October 2023
Chi-Cherng Hong, An-Yi Huang, Huang-Hsiung Hsu, Wan-Ling Tseng, Mong-Ming Lu, Chih-Chun Chang
NPJ Climate and Atmospheric Science
This peer-reviewed study examines the 2022 Pakistan floods that displaced over 30 million people and heatwaves over central China and Europe during the same period, and finds a broader teleconnection pattern linking these phenomena.Read More →