Abstract
In 2021, both social and economic activities began to return towards the levels preceding the COVID-19 pandemic for some parts of the globe, with others still experiencing restrictions. Meanwhile, the climate has continued to respond to the ongoing increase in greenhouse gases and resulting warming. La Nia, a phenomenon which tends to depress global temperatures while changing rainfall patterns in many regions, prevailed for all but two months of the year. Despite this, 2021 was one of the six-warmest years on record as measured by global mean surface temperature with an anomaly of between +0.21 and +0.28C above the 19912020 climatology.
| Original language | English (US) |
|---|---|
| Pages (from-to) | S11-S142 |
| Journal | Bulletin of the American Meteorological Society |
| Volume | 103 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2022 |
ASJC Scopus subject areas
- Atmospheric Science
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In: Bulletin of the American Meteorological Society, Vol. 103, No. 8, 08.2022, p. S11-S142.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - STATE OF THE CLIMATE IN 2021
AU - Blunden, Jessica
AU - Boyer, Tim
AU - Dunn, Robert J.H.
AU - Allen, Jessicca
AU - Hammer, Gregory
AU - Love-Brotak, S. Elizabeth
AU - Misch, Deborah J.
AU - Ohlmann, Laura
AU - Riddle, Deborah B.
AU - Veasey, Sara W.
AU - Ades, Melanie
AU - Adler, Robert
AU - Aldred, Freya
AU - Allan, R. P.
AU - Anderson, John
AU - Anneville, Orlane
AU - Aono, Yasuyuki
AU - Argüez, Anthony
AU - Arosio, Carlo
AU - Augustine, John A.
AU - Azorin-Molina, Cesar
AU - Barichivich, Jonathan
AU - Basu, Aman
AU - Beck, Hylke E.
AU - Bellouin, Nicolas
AU - Benedetti, Angela
AU - Blagrave, Kevin
AU - Blenkinsop, Stephen
AU - Bock, Olivier
AU - Bodin, Xavier
AU - Bosilovich, Michael G.
AU - Boucher, Olivier
AU - Bove, Gerald
AU - Buechler, Dennis
AU - Buehler, Stefan A.
AU - Carrea, Laura
AU - Chang, Kai Lan
AU - Christiansen, Hanne H.
AU - Christy, John R.
AU - Chung, Eui Seok
AU - Ciasto, Laura M.
AU - Coldewey-Egbers, Melanie
AU - Cooper, Owen R.
AU - Cornes, Richard C.
AU - Covey, Curt
AU - Cropper, Thomas
AU - Crotwell, Molly
AU - Cusicanqui, Diego
AU - Davis, Sean M.
AU - de Jeu, Richard A.M.
AU - Degenstein, Doug
AU - Delaloye, Reynald
AU - Donat, Markus G.
AU - Dorigo, Wouter A.
AU - Durre, Imke
AU - Dutton, Geoff S.
AU - Duveiller, Gregory
AU - Elkins, James W.
AU - Estilow, Thomas W.
AU - Fereday, David
AU - Flemming, Johannes
AU - Foster, Michael J.
AU - Frith, Stacey M.
AU - Froidevaux, Lucien
AU - Füllekrug, Martin
AU - Garforth, Judith
AU - Garg, Jay
AU - Gentry, Matthew
AU - Gobron, Nadine
AU - Goodman, Steven
AU - Gou, Qiqi
AU - Granin, Nikolay
AU - Guglielmin, Mauro
AU - Hahn, Sebastian
AU - Haimberger, Leopold
AU - Hall, Brad D.
AU - Harris, Ian
AU - Hemming, Debbie L.
AU - Hirschi, Martin
AU - Ho, Shu Pen
AU - Holzworth, Robert
AU - Hrbáček, Filip
AU - Hubert, Daan
AU - Hulsman, Petra
AU - Hurst, Dale F.
AU - Inness, Antje
AU - Isaksen, Ketil
AU - John, Viju O.
AU - Jones, Philip D.
AU - Junod, Robert
AU - Kääb, Andreas
AU - Kaiser, Johannes W.
AU - Kaufmann, Viktor
AU - Kellerer-Pirklbauer, Andreas
AU - Kent, Elizabeth C.
AU - Kidd, Richard
AU - Kim, Hyungiun
AU - Kipling, Zak
AU - Koppa, Akash
AU - L'Abée-Lund, Jan Henning
AU - Lan, Xin
AU - Lantz, Kathleen O.
AU - Lavers, David
AU - Loeb, Norman G.
AU - Loyola, Diego
AU - Madelon, Remi
AU - Malmquist, Hilmar J.
AU - Marszelewski, Wlodzimierz
AU - Mayer, Michael
AU - McCabe, Matthew F.
AU - McVicar, Tim R.
AU - Mears, Carl A.
AU - Menzel, Annette
AU - Merchant, Christopher J.
AU - Miller, John B.
AU - Miralles, Diego G.
AU - Montzka, Stephen A.
AU - Morice, Colin
AU - Mösinger, Leander
AU - Mühle, Jens
AU - Nicolas, Julien P.
AU - Noetzli, Jeannette
AU - Nõges, Tiina
AU - Noll, Ben
AU - O'Keefe, John
AU - Osborn, Tim J.
AU - Park, Taejin
AU - Pellet, Cecile
AU - Pelto, Maury S.
AU - Perkins-Kirkpatrick, Sarah E.
AU - Phillips, Coda
AU - Po-Chedley, Stephen
AU - Polvani, Lorenzo
AU - Preimesberger, Wolfgang
AU - Price, Colin
AU - Pulkkanen, Merja
AU - Rains, Dominik G.
AU - Randel, William J.
AU - Rémy, Samuel
AU - Ricciardulli, Lucrezia
AU - Richardson, Andrew D.
AU - Robinson, David A.
AU - Rodell, Matthew
AU - Rodríguez-Fernández, Nemesio J.
AU - Rosenlof, Karen H.
AU - Roth, Chris
AU - Rozanov, Alexei
AU - Rutishäuser, This
AU - Sawaengphokhai, Parnchai
AU - Schenzinger, Verena
AU - Schlegel, Robert W.
AU - Schneider, Udo
AU - Sharma, Sapna
AU - Shi, Lei
AU - Simmons, Adrian J.
AU - Siso, Carolina
AU - Soden, Brian J.
AU - Sofieva, Viktoria
AU - Sparks, Tim H.
AU - Stackhouse,
AU - Stauffer, Ryan
AU - Steinbrecht, Wolfgang
AU - Steiner, Andrea K.
AU - Stewart, Kenton
AU - Stradiotti, Pietro
AU - Streletskiy, Dimitri A.
AU - Telg, Hagen
AU - Thackeray, Stephen J.
AU - Thibert, Emmanuel
AU - Todt, Michael
AU - Tokuda, Daisuke
AU - Tourpali, Kleareti
AU - Tye, Mari R.
AU - van Der A, Ronald
AU - van der Schalie, Robin
AU - van der Schrier, Gerard
AU - van der Vliet, Mendy
AU - van der Werf, Guido R.
AU - van Vliet, Arnold
AU - Vernier, Jean Paul
AU - Vimont, Isaac J.
AU - Virts, Katrina
AU - Vivero, Sebastiàn
AU - Vömel, Holger
AU - Vose, Russell S.
AU - Wang, Ray H.J.
AU - Weber, Markus
AU - Wiese, David
AU - Wild, Jeanette D.
AU - Willett, Kate M.
AU - Williams, Earle
AU - Wong, Takmeng
AU - Woolway, R. I.
AU - Yin, Xungang
AU - Yuan, Ye
AU - Zhao, Lin
AU - Zhou, Xinjia
AU - Ziemke, Jerry R.
AU - Ziese, Markus
AU - Zotta, Ruxandra M.
AU - Bringas, Francis
AU - Cetinić, Ivona
AU - Chambers, Don P.
AU - Cheng, Lijing
AU - Dong, Shenfu
AU - Feely, Richard A.
AU - Fox-Kemper, Baylor
AU - Frajka-Williams, Eleanor
AU - Franz, Bryan A.
AU - Fu, Yao
AU - Gao, Meng
AU - Gilson, John
AU - Goni, Gustavo
AU - Hamlington, Benjamin D.
AU - Hewitt, Helene T.
AU - Hobbs, William R.
AU - Hu, Zeng Zhen
AU - Huang, Boyin
AU - Jevrejeva, Svetlana
AU - Johns, William E.
AU - Johnson, Gregory C.
AU - Katsunari, Sato
AU - Kennedy, John J.
AU - Kersalé, Marion
AU - Killick, Rachel E.
AU - Leuliette, Eric
AU - Locarnini, Ricardo
AU - Lozier, M. Susan
AU - Lumpkin, Rick
AU - Lyman, John M.
AU - Merrifield, Mark A.
AU - Mishonov, Alexey
AU - Mitchum, Gary T.
AU - Moat, Ben I.
AU - Nerem, R. Steven
AU - Notz, Dirk
AU - Perez, Renellys C.
AU - Purkey, Sarah G.
AU - Rayner, Darren
AU - Reagan, James
AU - Schmid, Claudia
AU - Siegel, David A.
AU - Smeed, David A.
AU - Stackhouse, Paul W.
AU - Sweet, William
AU - Thompson, Philip R.
AU - Volkov, Denis L.
AU - Wanninkhof, Rik
AU - Weller, Robert A.
AU - Wen, Caihong
AU - Westberry, Toby K.
AU - Widlansky, Matthew J.
AU - Willis, Josh K.
AU - Yu, Lisan
AU - Zhang, Huai Min
AU - Allgood, Adam
AU - Becker, Emily J.
AU - Blake, Eric S.
AU - Bringas, Francis G.
AU - Camargo, Suzana J.
AU - Chen, Lin
AU - Coelho, Caio A.S.
AU - Diamond, Howard J.
AU - Fauchereau, Nicolas
AU - Goldenberg, Stanley B.
AU - Halpert, Michael S.
AU - He, Qiong
AU - Klotzbach, Philip J.
AU - Knaff, John A.
AU - Kumar, Arun
AU - Landsea, Chris W.
AU - L'Heureux, Michelle
AU - Lin, I. I.
AU - Lorrey, Andrew M.
AU - Luo, Jing Jia
AU - Magee, Andrew D.
AU - Pasch, Richard J.
AU - Pezza, Alexandre B.
AU - Rosencrans, Matthew
AU - Schreck, Carl J.
AU - Trewin, Blair C.
AU - Truchelut, Ryan E.
AU - Wang, Bin
AU - Wang, Hui
AU - Wood, Kimberly M.
AU - Woolley, John Mark
AU - Andreassen, L. M.
AU - Baker, E.
AU - Ballinger, Thomas J.
AU - Berner, Logan T.
AU - Bernhard, Germar H.
AU - Bhatt, Uma S.
AU - Bjerke, Jarle W.
AU - Boisvert, L. N.
AU - Box, Jason E.
AU - Brettschneider, B.
AU - Burgess, D.
AU - Butler, Amy H.
AU - Cappelen, John
AU - Decharme, B.
AU - Derksen, C.
AU - Divine, Dmitry
AU - Drozdov, D. S.
AU - Druckenmiller, Matthew L.
AU - Elias Chereque, A.
AU - Epstein, Howard E.
AU - Farrell, Sinead L.
AU - Fausto, Robert S.
AU - Fettweis, Xavier
AU - Fioletov, Vitali E.
AU - Forbes, Bruce C.
AU - Frost, Gerald V.
AU - Gerland, Sebastian
AU - Goetz, Scott J.
AU - Grooß, Jens Uwe
AU - Haas, Christian
AU - Hanna, Edward
AU - Hanssen-Bauer, Inger
AU - Heijmans, M. M.P.D.
AU - Hendricks, Stefan
AU - Ialongo, Iolanda
AU - Isaksen, K.
AU - Jensen, C. D.
AU - Johnsen, Bjørn
AU - Kaleschke, L.
AU - Kholodov, A. L.
AU - Kim, Seong Joong
AU - Kohler, J.
AU - Korsgaard, Niels J.
AU - Labe, Zachary
AU - Lakkala, Kaisa
AU - Lara, Mark J.
AU - Lee, Simon H.
AU - Loomis, Bryant
AU - Luks, B.
AU - Luojus, K.
AU - Macander, Matthew J.
AU - Magnússon, R.
AU - Malkova, G. V.
AU - Mankoff, Kenneth D.
AU - Manney, Gloria L.
AU - Meier, Walter N.
AU - Moon, Twila A.
AU - Mote, Thomas
AU - Mudryk, Lawrence
AU - Muller, Rolf
AU - Nyland, K. E.
AU - Overland, James E.
AU - Pálsson, F.
AU - Park, T.
AU - Parker, C. L.
AU - Perovich, Don
AU - Petty, Alek
AU - Phoenix, Gareth K.
AU - Pinzon, J. E.
AU - Ricker, Robert
AU - Romanovsky, Vladimir E.
AU - Serbin, S. P.
AU - Sheffield, G.
AU - Shiklomanov, Nikolai I.
AU - Smith, Sharon L.
AU - Stafford, K. M.
AU - Steer, A.
AU - Svendby, Tove
AU - Tedesco, Marco
AU - Thoman, Richard L.
AU - Thomson, L.
AU - Thorsteinsson, T.
AU - Tian-Kunze, X.
AU - Timmermans, Mary Louise
AU - Tømmervik, Hans
AU - Tschudi, Mark
AU - Tucker, C. J.
AU - Walker, Donald A.
AU - Walsh, John E.
AU - Wang, Muyin
AU - Webster, Melinda
AU - Wehrlé, A.
AU - Winton, Øyvind
AU - Wolken, G.
AU - Wood, K.
AU - Wouters, B.
AU - Yang, D.
AU - Adusumilli, Susheel
AU - Baiman, Rebecca
AU - Banwell, Alison F.
AU - Barreira, Sandra
AU - Beadling, Rebecca L.
AU - Clem, Kyle R.
AU - Colwell, Steve
AU - Coy, Lawrence
AU - Datta, Rajashree T.
AU - De Laat, Jos
AU - Dunmire, Devon
AU - Fogt, Ryan L.
AU - Freeman, Natalie M.
AU - Fricker, Helen Amanda
AU - Gardner, Alex S.
AU - Johnson, Bryan
AU - Keller, Linda M.
AU - Kramarova, Natalya A.
AU - Lazzara, Matthew A.
AU - Lieser, Jan L.
AU - MacFerrin, Michael
AU - MacGilchrist, Graeme A.
AU - MacLennan, Michelle L.
AU - Massom, Robert A.
AU - Mazloff, Matthew R.
AU - Mote, Thomas L.
AU - Nash, Eric R.
AU - Newman, Paul A.
AU - Norton, Taylor
AU - Petropavlovskikh, Irina
AU - Pitts, Michael
AU - Raphael, Marilyn N.
AU - Reid, Phillip
AU - Santee, Michelle L.
AU - Scambos, Ted A.
AU - Shi, Jia Rui
AU - Stammerjohn, Sharon
AU - Strahan, Susan E.
AU - Thompson, Andrew F.
AU - Wille, Jonathan D.
AU - Wilson, Earle
AU - Abida, A.
AU - Agyakwah, W.
AU - Aldeco, Laura S.
AU - Alfaro, Eric J.
AU - Allen, Teddy
AU - Alves, Lincoln M.
AU - Amador, Jorge A.
AU - Andrade, B.
AU - Asgarzadeh, P.
AU - Avalos, Grinia
AU - Baez, Julian
AU - Bardin, M. Yu
AU - Bekele, E.
AU - Bertalanic, Renato
AU - Bissolli, Peter
AU - Bochníček, Oliver
AU - Bukunt, Brandon
AU - Calderón, Blanca
AU - Campbell, Jayaka D.
AU - Chandler, Elise
AU - Charlton, Candice S.
AU - Cheng, Vincent Y.S.
AU - Clarke, Leonardo A.
AU - Correa, Kris
AU - Cortés Salazar, Catalina R.
AU - Costa, Felipe
AU - Crhová, Lenka
AU - Cunha, Ana Paula
AU - Demircan, Mesut
AU - Dhurmea, K. R.
AU - Domínguez, Diana A.
AU - Dulamsuren, Dashkhuu
AU - ElKharrim, M.
AU - Espinoza, Jhan Carlo
AU - Fazl-Kezemi, A.
AU - Fedaeff, Nava
AU - Fenimore, Chris
AU - Fuhrman, Steven
AU - Ganter, Catherine
AU - Gleason, Karin
AU - Guard, Charles P.
AU - Hagos, Samson
AU - Hanafusa, Mizuki
AU - Heim, Richard R.
AU - Kennedy, John
AU - Hellström, Sverker
AU - Hidalgo, Hugo G.
AU - Ijampy, I. A.
AU - Im, Gyo Soon
AU - Jumaux, G.
AU - Kabidi, K.
AU - Kerr, Kenneth
AU - Khalatyan, Yelena
AU - Khan, Valentina
AU - Khiem, Mai Van
AU - Koch, Tobias
AU - Koren, Gerbrand
AU - Korshunova, Natalia N.
AU - Kruger, A. C.
AU - Lakatos, Mónika
AU - Mamen, Jostein
AU - Lam, Hoang Phuc
AU - Lander, Mark A.
AU - Lavado-Casimiro, Waldo
AU - Lee, Tsz Cheung
AU - Leung, Kinson H.Y.
AU - Liu, Xuefeng
AU - Lu, Rui
AU - Marengo, José A.
AU - Marjan, Mohammadi
AU - Martínez, Ana E.
AU - McBride, Charlotte
AU - Mekonnen, Ademe
AU - Mietus, Mirek
AU - Misevicius, Noelia
AU - Moise, Aurel
AU - Molina-Carpio, Jorge
AU - Mora, Natali
AU - Mostafa, Awatif E.
AU - Ndiaye, O.
AU - Nieto, Juan J.
AU - Olafsdottir, Kristin
AU - Pascual Ramírez, Reynaldo
AU - Phillips, David
AU - Porat, Amos
AU - Rodriguez Guisado, Esteban
AU - Rajeevan, Madhavan
AU - Ramos, Andrea M.
AU - Recalde Coronel, Cristina
AU - Reyes Kohler, Alejandra J.
AU - Robjhon, M.
AU - Ronchail, Josyane
AU - Salinas, Roberto
AU - Sánchez-Lugo, Ahira
AU - Sato, Hirotaka
AU - Sato, Hitoshi
AU - Sayouri, Amal
AU - Sensoy, Serhat
AU - Setiawan, Amsari Mudzakir
AU - Sima, F.
AU - Smith, Adam
AU - Sorel, Matthieu
AU - Spillane, Sandra
AU - Spence, Jacqueline M.
AU - Sreejith, O. P.
AU - Srivastava, A. K.
AU - Stephenson, Tannecia S.
AU - Takahashi, Kiyotoshi
AU - Taylor, Michael A.
AU - Thiaw, Wassila M.
AU - Tobin, Skie
AU - Trescilo, Lidia
AU - Trotman, Adrian R.
AU - Van Meerbeeck, Cedric J.
AU - Vazifeh, A.
AU - Wakamatsu, Shunya
AU - Zaheer, M. F.
AU - Zeng, F.
AU - Zhang, Peiqun
AU - Zhu, Zhiwei
N1 - Data from the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) were provided by the Geological Survey of Denmark and Greenland (GEUS) at http://www.promice.dk. Twila Moon was supported by the University of Colorado Boulder Cooperative Institute for Research in Environmental Sciences. Marco Tedesco was supported by National Science Foundation ANS #1713072, National Science Foundation PLR1-603331, NASA MAP #80NSSC17K0351, NASA #NN1X 7AH04G, and the Heising-Simons foundation. Thomas Mote was supported by National Science Foundation #1900324. Sentinel3-SICE data processing via PolarView.org is made possible by the European Space Agency (ESA) Network of Resources. Summit Station is owned and operated by the National Science Foundation Office of Polar Programs with permission from the Government of Greenland. Data from land-based weather stations in Greenland were provided by the Danish Meteorological Institute, and Summit Station data provided by NOAA GEOSummit. • Sandra Bigley provided invaluable editorial support for Chapter 3. Internal reviewers, external reviews, and report editors all provided comments that helped to improve the chapter. • Argo data used in the chapter were collected and made freely available by the International Argo Pro-gram and the national programs that contribute to it. (https://argo.ucsd.edu, https://www.ocean-ops . org). The Argo Program is part of the Global Ocean Observing System. Many authors of the chapter are supported by NOAA Research, the NOAA Global Ocean Monitoring and Observing Program, or the NOAA Ocean Acidification Program. • L. Cheng is supported by National Natural Science Foundation of China (42076202) and Strategic Priority Research Program of the Chinese Academy of Sciences (XDB42040402). • R. E. Killick is supported by the Met Office Hadley Centre Climate Programme funded by BEIS and Defra. PMEL contribution numbers 5214, 5215, 5216, 5217, and 5247. • We would like to acknowledge the national and/or hydrometeorological services/bureaus of Morocco, Algeria, Egypt, Senegal (National Aviation and Meteorology Agency), Nigeria, South Africa, Madagascar, Seychelles, Comoros Mayotte (France), Reunion (France), and Mauritius. • We acknowledge support by the NOAA-CPC International Desk. Global datasets from NCEP/NCAR and GPCP are acknowledged. • Samson Hagos and Zhe Feng are supported by the U.S. Department of Energy Office of Science Biological and Environmental Research as part of the Atmospheric Systems Research (ASR) Program. Germar Bernhard and coauthors acknowledge the support of Biospherical Instruments, San Diego; the Research Council of Norway through its Centres of Excellence funding scheme, proej ct number 223268/F50; the Academy of Finland for supporting UV measurements through the FARPOCC, SAARA, and CHAMPS (grant no. 329225) proej cts; the European Space Agency for supporting the DACES proej ct; the Norwegian Environment Agency for funding UV measurements at Andøya and Ny-Ålesund; and the European Union for supporting e-shape. The authors also would like to thank Bodeker Scientific, funded by the New Zealand Deep South National Science Challenge, for providing the combined NIWA-BS total column ozone database; the Microwave Limb Sounder team at NASA’s Jet Propulsion Laboratory for data-processing and analysis support; the European Centre for medium-range weather forecasts for providing reanalysis data; and Juha M. Karhu, Tomi Karppinen, and Markku Ahponen from the Finnish Meteorological Institute for operating the Brewer UV spectroradiometer at Sodankylä • N. M. Freeman was supported by the NASA Ocean Vector Winds Science Team (NASA award 80NS-SC19K0059). • R. L. Fogt acknowledges support from the National Science Foundation grant OPP1-744998. • M. A. Lazzara, L. M. Keller, and T. Norton were supported in part by the National Science Foundation Grant OPP1-924730. • K. R. Clem acknowledges support from the Royal Society of New Zealand Marsden Fund grant MFP-VUW2010. • J. D. Wille acknowledges support from the Agence Nationale de la Recherche proej cts ANR2-0-CE01-0013 (ARCA). • R. T. Datta acknowledges support from the National Science Foundation, Award No. 1952199 • E. Wilson acknowledges support from Caltech’s Terrestrial Hazard Observations and Reporting (THOR) Center. • A. F. Thompson acknowledges support from NASA Jet Propulsion Laboratory’s Internal Research and Development program, Earth 2050. • G. A. MacGilchrist and M. Mazloff acknowledge support from NSF’s Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Proej ct under NSF Award PLR1-425989, with additional support from NOAA and NASA. Logistical support for SOCCOM in the Antarctic was provided by the U.S. NSF through the U.S. Antarctic Program. • Work at the Jet Propulsion Laboratory, California Institute of Technology, was done under contract with the National Aeronautics and Space Administration (NASA). Support was also provided by the NASA Modeling and Analysis Program. We are indebted to the many NOAA Corps Officers and GML technical personnel who spend the winters at South Pole Station to obtain the ongoing balloon and ground-based data sets. We also acknowledge the logistics support in Antarctica provided by the National Science Foundation Office of Polar Programs. • Section 6h: © 2022. All rights reserved. • P. Reid and J. Lieser were supported through the Australian Bureau of Meteorology, and R. Massom by the Australian Antarctic Division. The work of P. Reid and R. Massom also contributes to the Australian Government’s Australian Antarctic Partnership Program (AAPP). For R. Massom, this work was also sup-ported by the Australian Research Council Special Research Initiative the Australian Centre for Excellence in Antarctic Science (Proej ct Number SR200100008). • S. Stammerjohn was supported under NSF PLR 1440435; she also thanks the Institute of Arctic and Alpine Research and the National Snow and Ice Data Center, both at the University of Colorado Boulder, for institutional and data support. • S. Barreira was supported by the Argentine Naval Hydrographic Service. • T. Scambos was supported under NASA grants NN1X 4AM54G and 80NSSC21K0750, the Arctic Sea Ice News and Analysis proej ct and NSF ANT 1738992, and the NSF-NERC International Thwaites Glacier Collaboration TARSAN project. The work of M. Flü lekrug was sponsored by the Royal Society (UK) grant NMG/R1/180252 and the Natural Environment Research Council (UK) under grants NE/L012669/1 and NE/H024921/1. E. Williams is supported for studies on global circuit response to climate change from the Physical and Dynamic Meteorology Program at the National Science Foundation on grant no. 6942679. C. Price was supported in his lightning research by the Israel Science Foundation (ISF) grant 2701/17 and the Ministry of Energy grant no. 2201-7-002. S. Goodman was supported by NASA Grant 80NSSC21K0923 and NASA Contract 80GSFC20C044. K. Virts is supported in part by the GOES-R Series Science, Demonstration, and Cal/Val Program at Marshall Space Flight Center. D. Buechler is supported by the NASA MSFC/UAH Cooperative Agreement NNM11AA01A. The authors wish to thank Peter Thorne at Maynooth University in Ireland and at the European Centre for Medium Range Weather Forecast (ECMWF) for suggesting and initiating this work and for recommending that lightning be made an essential climate variable. The data used to generate Fig. SB2.1 are available from the NASA Global Hydrometeorology Resource Center DAAC, Huntsville, Alabama. The data used to generate Fig. SB.2.2 are provided by WWLLN to GHRC as part of GLM cal/val activities.
PY - 2022/8
Y1 - 2022/8
N2 - In 2021, both social and economic activities began to return towards the levels preceding the COVID-19 pandemic for some parts of the globe, with others still experiencing restrictions. Meanwhile, the climate has continued to respond to the ongoing increase in greenhouse gases and resulting warming. La Nia, a phenomenon which tends to depress global temperatures while changing rainfall patterns in many regions, prevailed for all but two months of the year. Despite this, 2021 was one of the six-warmest years on record as measured by global mean surface temperature with an anomaly of between +0.21 and +0.28C above the 19912020 climatology.
AB - In 2021, both social and economic activities began to return towards the levels preceding the COVID-19 pandemic for some parts of the globe, with others still experiencing restrictions. Meanwhile, the climate has continued to respond to the ongoing increase in greenhouse gases and resulting warming. La Nia, a phenomenon which tends to depress global temperatures while changing rainfall patterns in many regions, prevailed for all but two months of the year. Despite this, 2021 was one of the six-warmest years on record as measured by global mean surface temperature with an anomaly of between +0.21 and +0.28C above the 19912020 climatology.
UR - http://www.scopus.com/inward/record.url?scp=85174784088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85174784088&partnerID=8YFLogxK
U2 - 10.1175/2022BAMSStateoftheClimate.1
DO - 10.1175/2022BAMSStateoftheClimate.1
M3 - Article
AN - SCOPUS:85174784088
SN - 0003-0007
VL - 103
SP - S11-S142
JO - Bulletin of the American Meteorological Society
JF - Bulletin of the American Meteorological Society
IS - 8
ER -