Climate Attribution

Climate Change Made the Extreme 2-Day Rainfall Event Associated with Flooding in Middleton, Ireland More Likely and More Intense

February 2024
Ben Clarke, Peter Thorne, Ciara Ryan, Mariam Zachariah, Conor Murphy, Gerard McCarthy, Paul O'Connor, Emannuel O. Eresanya, Niamh Cahill, Barry Coonan
Worldwide Weather Attribution
This real-time event attribution study examines extreme flooding in County Cork, Ireland, and finds that climate change since the industrial revolution has more than doubled the likelihood of such flooding events.Read More →

Interplay of climate change-exacerbated rainfall, exposure and vulnerability led to widespread impacts in the Mediterranean region

September 2023
Mariam Zachariah, Vassiliki Kotroni, Lagouvardos Kostas, Clair Barnes, Joyce Kimutai, Sarah Kew, Izidine Pinto, Nadia Bloemendaal, Wenchang Yang, Maja Vahlberg, Roop Singh, Lisa Thalheimer, Friederike Otto
Grantham Institute for Climate Change
This real-time event study assesses the torrential rain that fell in several countries across the Mediterranean in September 2023, and evaluates the role of human-induced climate change in the frequency and severity of such events.Read More →

Climate Change Made 2022 Northern Hemisphere Droughts More Likely

October 2022
Dominik L. Schumacher, Mariam Zachariah, Friederike Otto, Clair Barnes, Sjoukje Philip, Sarah Kew, Maja Vahlberg, Roop Singh, Dorothy Heinrich, Julie Arrighi, Maarten van Aalst, Mathias Hauser, Martin Hirschi, Lukas Gudmundsson, Hiroko K. Beaudoing, Matthew Rodell, Sihan Li, Wenchang Yang, Gabriel A. Vecchi, Robert Vautard, Luke J. Harrington, Sonia I. Seneviratne
Worldwide Weather Attribution
This event attribution study analyzes the impact of climate change on droughts across the non-tropical Northern Hemisphere, with a particular focus on West-Central Europe. Read More →

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

September 2022
Friederike E. L. Otto, Mariam Zachariah, Fahad Saeed, Ayesha Siddiqi, Kamil Shahzad, Haris Mushtaq, Arulalan T, Krishna AchutaRao, Chaithra S, 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
Worldwide Weather Attribution
Between June and August of 2022, rains flooding in Pakistan affected over 33 million people, destroyed 1.7 million homes, and killed nearly 1500 people. This event attribution study analyzes the impact of climate change on this extreme rainfall.Read More →

Without human-caused climate change temperatures of 40oC in the UK would have been extremely unlikely

July 2022
Mariam Zachariah, Robert Vautard, Dominik L. Schumacher, Maja Vahlberg, Dorothy Heinrich, Emmanuel Raju, Lisa Thalheimer, Julie Arrighi, Roop Singh, Sihan Li, Jingru Sun, Gabriel Vecchi, Wenchang Yang, Sonia I. Seneviratne, Simon F. B. Tett, Luke J. Harrington, Piotr Wolski, Fraser C. Lott, Mark McCarthy, Jordis S. Tradowsky, Friederike E. L. Otto
World Weather Attribution
This study finds that human-caused climate change made the UK 2022 heat wave at least 10 times more likely.Read More →

Climate change increased heavy rainfall, hitting vulnerable communities in Eastern Northeast Brazil

July 2022
Mariam Zachariah, Francisco das Chagas Vasconcelos Junior, Thiago Luis do Vale Silva, Edvânia Pereira dos Santos, Caio Augusto dos Santos Coelho, Lincoln Muniz Alves, Eduardo Sávio Passos Rodrigues Martins, Alexandre C. Köberle, ROop Singh, Maja Vahlberg, Victor Machezini, Dorothy Heinrich, Lisa Thalheimer, Emmanuel Raju, Gerbrand Koren, Sjoukje Phillip, Sarah Kew, Rémy Bonnet, Sihan Li, Wenchang Yang, Jingru Sun, Gabriel Vecchi, Friederike E. L. Otto
Worldwide Weather Attribution
Attribution study concluding that human-caused climate change is, at least in part, responsible for the observed increases in likelihood and intensity of heavy rainfall events like May 2022's catastrophic floods in Eastern Northeast Brazil.Read More →

Another Record: Ocean Warming Continues through 2021 despite La Niña Conditions

January 2022
Lijing Cheng, John Abraham, Kevin E. Trenberth, John Fasullo, Tim Boyer, Michael E. Mann, Jiang Zhu, Fan Wang, Ricardo Locarnini, Yuanlong Li, Bin Zhang, Zhetao Tan, Fujiang Yu, Liying Wan, Xingrong Chen, Xiangzhou Song, Yulong Liu, Franco Reseghetti, Simona Simoncelli, Viktor Gouretski, Gengxin Chen, Alexey Mishonov & Jim Reagan
Advances in Atmospheric Sciences
This study finds that the world ocean, in 2021, was the hottest ever recorded by humans.Read More →