Climate Attribution

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Climate change increased extreme monsoon rainfall, flooding highly vulnerable communities in Pakistan

March 2023
Friederike E L Otto, Mariam Zachariah, Fahad Saeed, Ayesha Siddiqi, Shahzad Kamil, Haris Mushtaq, T Arulalan, Krishna AchutaRao, S T Chaithra, Clair Barnes, Sjoukje Philip, Sarah Kew, Robert Vautard, Gerbrand Koren, Izidine Pinto, Piotr Wolski, Maja Vahlberg, Roop Singh, Julie Arrighi, Maarten van Aalst, Lisa Thalheimer, Emmanuel Raju, Sihan Li, Wenchang Yang, Luke J Harrington, Ben Clarke
Environmental Research: Climate
This peer-reviewed study uses a probabilistic event attribution methodology to assess the dynamics of extreme monsoon rainfall in Pakistan throughout the 2022 summer season. Read More →

Recent and future declines of a historically widespread pollinator linked to climate, land cover, and pesticides

January 2023
William M. Janousek, Margaret R. Douglas, Syd Cannings, Marion A. Clément, Casey M. Delphia, Jeffery G. Everett, Richard G. Hatfield, Douglas A. Keinath, Jonathan B. Uhuad Koch, Lindsie M. McCabe, John M. Mola, Jane E. Ogilvie, Imtiaz Rangwala, Leif L. Richardson, Ashley T. Rohde, James P. Strange, Lusha M. Tronstad, and Tabitha A. Graves
Proceedings of the National Academy of the Sciences
This peer-reviewed study uses bayesian statistical methods to evaluate impacts of climate change on bumble bee populations. Bumble bees are projected to experience significant population decline over the next century due to climate-driven stressors. Read More →

Rapid attribution analysis of the extraordinary heat wave on the Pacific coast of the US and Canada in June 2021

December 2022
Sjoukje Y. Philip, Sarah F. Kew, Geert Jan van Oldenborgh, Faron S. Anslow, Sonia I. Seneviratne, Robert Vautard, Dim Coumou, Kristie L. Ebi, Julie Arrighi, Roop Singh, Maarten van Aalst, Carolina Pereira Marghidan, Michael Wehner, Wenchang Yang, Sihan Li, Dominik L. Schumacher, Mathias Hauser, Rémy Bonnet, Linh N. Luu, Flavio Lehner, Nathan Gillett, Jordis S. Tradowsky, Gabriel A. Vecchi, Chris Rodell, Roland B. Stull, Rosie Howard, and Friederike E. L. Otto
Earth System Dynamics
Towards the end of June 2021, temperature records were broken by several degrees Celsius in several cities in the Pacific Northwest areas of the US and Canada, leading to spikes in sudden deaths and sharp increases in emergency calls and hospital visRead More →

Megadroughts in the Common Era and the Anthropocene

October 2022
Benjamin I. Cook, Jason E. Smerdon, Edward R. Cook, A. Park Williams, Kevin J. Anchukaitis, Justin S. Mankin, Kathryn Allen, Laia Andreu-Hayles, Toby R. Ault, Soumaya Belmecheri, Sloan Coats, Bethany Coulthard, Boniface Fosu, Pauline Grierson, Daniel Griffin, Dimitris A. Herrera, Monica Ionita, Flavio Lehner, Caroline Leland, Kate Marvel, Mariano S. Morales, Vimal Mishra, Justine Ngoma, Hung T. T. Nguyen, Alison O’Donnell, Jonathan Palmer, Mukund P. Rao, Milagros Rodriguez-Caton, Richard Seager, David W. Stahle, Samantha Stevenson, Uday K. Thapa, Arianna M. Varuolo-Clarke, Erika K. Wise
Nature Reviews Earth & Environment
This review article assesses the shared causes and features of megadroughts. Decadal variations in sea surface temperatures are the primary driver of megadroughts, with secondary contributions from radiative forcing and land–atmosphere interactions.Read More →

Increasing western wildfire impacts on snowpack in the western U.S.

September 2022
Stephanie Kampf, Daniel McGrath, Megan Sears, Steven Fassnacht, Leonie Kiewiet, and John Hammond
Proceedings of the National Academy of Sciences
This peer-reviewed study uses satellite mapping of snow pack in the western United States and government wildfire area datasets to show that wildfires are decreasing snow pack and shifting towards areas with late snow melt.Read More →