Climate Attribution

Future increases in Arctic lightning and fire risk for permafrost carbon

April 2021
Yang Chen, David M. Romps, Jacob T. Seeley, Sander Veraverbeke, William J. Riley, Zelalem A. Mekonnen, James T. Randerson
Nature
Lightning increases may induce a fire–vegetation feedback whereby more burning in Arctic tundra expedites the northward migration of boreal trees, with the potential to accelerate the positive feedback associated with permafrost soil carbon release.Read More →

Greenhouse gases (CO2 and CH4) at an urban background site in Athens, Greece: Levels, sources and impact of atmospheric circulation

March 2021
K. Dimitriou, A. Bougiatioti, M. Ramonet, F. Pierros, P. Michalopoulos, E. Liakakou, S. Solomos, P.-Y. Quehe, M. Delmotte, E. Gerasopoulos, M. Kanakidou, N. Mihalopoulos
Elsevier
Year-round carbon dioxide and methane concentration measurements, performed for the first time in the city of Athens, Greece from December 21, 2018 to December 31, 2019, are presented in this study and analyzed in relation to atmospheric circulation.Read More →

Lightning in the Arctic

March 2021
R. H. Holzworth, J. B. Brundell, M. P. McCarthy, A. R. Jacobson, C. J. Rodger, T. S. Anderson
AGU
The ratio of strokes occurring above a given latitude, compared to total global strokes, increases with time, indicating that the Arctic is becoming more influenced by lightning.Read More →

Globally observed trends in mean and extreme river flow attributed to climate change

March 2021
LUKAS GUDMUNDSSON, JULIEN BOULANGE, HONG X. DO, SIMON N. GOSLING, MANOLIS G. GRILLAKIS, ARISTEIDIS G. KOUTROULIS, MICHAEL LEONARD, JUNGUO LIU, HANNES MÜLLER SCHMIED, LAMPRINI PAPADIMITRIOU, YADU POKHREL, SONIA I. SENEVIRATNE, YUSUKE SATOH, WIM THIERY, SETH WESTRA, XUEBIN ZHANG, FANG ZHAO
American Association for the Advancement of Science
The fingerprint of anthropogenic climate change is apparent in river flow and hydrological extremes at the global scale.Read More →