Vlasceanu, MadalinaDoell, Kimberly C.Bak-Coleman, Joseph B.Todorova, BoryanaBerkebile-Weinberg, Michael M.Grayson, Samantha J.Patel, YashGoldwert, DaniellePei, YifeiChakroff, AlekPronizius, Ekaterinavan den Broek, Karlijn L.Vlasceanu, DenisaConstantino, SaraMorais, Michael J.Schumann, PhilippRathje, SteveFang, KeAglioti, Salvatore MariaAlfano, MarkAlvarado-Yepez, Andy J.Andersen, AngélicaAnseel, FrederikApps, Matthew A JAsadli, ChillarAwuor, Fonda JaneAzevedo, FlavioBasaglia, PieroBélanger, Jocelyn J.Berger, SebastianBertin, PaulBiałek, MichałBialobrzeska, OlgaBlaya-Burgo, MichelleBleize, Daniëlle N MBø, SimenBoecker, LeaBoggio, Paulo S.Borau, SylvieBos, BjörnBouguettaya, AyoubBrauer, MarkusBrick, CameronBrik, TymofiiBriker, RomanBrosch, TobiasBuchel, OndrejBuonauro, DanielButalia, RadhikaCarvacho, HéctorChamberlain, Sarah A EChan, Hang-YeeChow, DawnChung, DongilCian, LucaCohen-Eick, NoaContreras-Huerta, Luis SebastianContu, DavideCristea, VladimirCutler, JoD'Ottone, SilvanaDe Keersmaecker, JonasDelcourt, SarahDelouvée, SylvainDiel, KathiDouglas, Benjamin D.Drupp, Moritz A.Dubey, ShreyaEkmanis, JānisElbaek, Christian T.Elsherif, MahmoudEngelhard, Iris M.Escher, Yannik A.Etienne, Tom W.Farage, LauraFarias, Ana RitaFeuerriegel, StefanFeuerriegel, StefanFindor, AndrejFreira, LuciaFriese, MalteGains, Neil PhilipGallyamova, AlbinaGeiger, Sandra J.Genschow, OliverGjoneska, BiljanaGkinopoulos, TheofilosGoldberg, BethGoldenberg, AmitGradidge, SarahGrassini, SimoneGray, KurtGrelle, SonjaGriffin, Siobhán M.Grigoryan, LusineGrigoryan, AniGrigoryev, DmitryGruber, JuneGuilaran, JohnrevHadar, BrittHahnel, Ulf J JHalperin, EranHarvey, Annelie J.Haugestad, Christian A PHerman, Aleksandra M.Hershfield, Hal E.Himichi, ToshiyukiHine, Donald W.Hofmann, WilhelmHowe, LaurenHuaman-Chulluncuy, Enma T.Huang, GuanxiongIshii, TatsunoriIto, AyahitoJia, FanliJost, John T.Jovanović, VeljkoJurgiel, DominikaKácha, OndřejKankaanpää, ReetaKantorowicz, JaroslawKantorowicz-Reznichenko, ElenaKaplan Mintz, KerenKaya, IlkerKaya, OzgurKhachatryan, NarineKlas, AnnaKlein, ColinKlöckner, Christian A.Koppel, LinaKosachenko, Alexandra I.Kothe, Emily J.Krebs, RuthKrosch, Amy R.Krouwel, Andre P MKyrychenko, YaraLagomarsino, MariaLamm, ClausLange, FlorianLee Cunningham, JuliaLees, JeffreyLeung, Tak YanLevy, NeilLockwood, Patricia L.Longoni, ChiaraLópez Ortega, AlbertoLoschelder, David D.Lu, Jackson G.Luo, YuLuomba, JosephLutz, Annika E.Majer, Johann M.Markowitz, EzraMarsh, Abigail A.Mascarenhas, Karen LouiseMbilingi, BwambaleMbungu, WinfredMcHugh, CillianMeijers, Marijn H CMercier, HugoMhagama, Fenant LaurentMichalakis, KaterinaMikus, NaceMilliron, SarahMitkidis, PanagiotisMonge-Rodríguez, Fredy S.Mora, Youri L.Moreau, DavidMotoki, KosukeMoyano, ManuelMus, MathildeNavajas, JoaquinNguyen, Tam LuongNguyen, Dung MinhNguyen, TrieuNiemi, LauraNijssen, Sari R RNilsonne, GustavNitschke, Jonas P.Nockur, LailaOkura, RitahÖner, SezinÖzdoğru, Asil AliPalumbo, HelenaPanagopoulos, CostasPanasiti, Maria SerenaPärnamets, PhilipParuzel-Czachura, MariolaPavlov, Yuri G.Payán-Gómez, CésarPearson, Adam R.Pereira da Costa, LeonorPetrowsky, Hannes M.Pfattheicher, StefanPham, Nhat TanPonizovskiy, VladimirPretus, ClaraRêgo, Gabriel G.Reimann, RitsaartRhoads, Shawn A.Riano-Moreno, JulianRichter, IsabellRöer, Jan PhilippRosa-Sullivan, JahredRoss, Robert M.Sabherwal, AnanditaSaito, ToshikiSarrasin, OrianeSay, NicolasSchmid, KatharinaSchmitt, Michael T.Schoenegger, PhilippScholz, ChristinSchug, Mariah G.Schulreich, StefanShreedhar, GangaShuman, EricSivan, SmadarSjåstad, HallgeirSoliman, MeikelSoud, KatiaSpampatti, TobiaSparkman, GreggSpasovski, OgnenStanley, Samantha K.Stern, Jessica A.Strahm, NoelSuko, YasushiSul, SunhaeSyropoulos, StylianosTaylor, Neil C.Tedaldi, ElisaTinghög, GustavHuynh, Luu Duc ToanTravaglino, Giovanni AntonioTsakiris, ManosTüter, İlaydaTyrala, MichaelUluğ, Özden MelisUrbanek, ArkadiuszValko, Danilavan der Linden, Sandervan Schie, Kevinvan Stekelenburg, AartVanags, EdmundsVästfjäll, DanielVesely, StepanVintr, JáchymVranka, MarekWanguche, Patrick OtuoWiller, RobbWojcik, Adrian DominikXu, RachelYadav, AnjaliZawisza, MagdalenaZhao, XianZhao, JiayingŻuk, DawidVan Bavel, Jay J.2024-02-192024-02-1920242024-02-09Vlasceanu, M., Doell, K. C., Bak-Coleman, J. B., Todorova, B., Berkebile-Weinberg, M. M., Grayson, S. J., Patel, Y., Goldwert, D., Pei, Y., Chakroff, A., Pronizius, E., van den Broek, K. L., Vlasceanu, D., Constantino, S., Morais, M. J., Schumann, P., Rathje, S., Fang, K., Aglioti, S. M., Alfano, M., … Van Bavel, J. J. (2024). Addressing climate change with behavioral science: A global intervention tournament in 63 countries. Science advances, 10(6), eadj5778. https://doi.org/10.1126/sciadv.adj577823752548https://doi.org/10.1126/sciadv.adj5778https://hdl.handle.net/20.500.12519/1012Effectively reducing climate change requires marked, global behavior change. However, it is unclear which strategies are most likely to motivate people to change their climate beliefs and behaviors. Here, we tested 11 expert-crowdsourced interventions on four climate mitigation outcomes: beliefs, policy support, information sharing intention, and an effortful tree-planting behavioral task. Across 59,440 participants from 63 countries, the interventions' effectiveness was small, largely limited to nonclimate skeptics, and differed across outcomes: Beliefs were strengthened mostly by decreasing psychological distance (by 2.3%), policy support by writing a letter to a future-generation member (2.6%), information sharing by negative emotion induction (12.1%), and no intervention increased the more effortful behavior-several interventions even reduced tree planting. Last, the effects of each intervention differed depending on people's initial climate beliefs. These findings suggest that the impact of behavioral climate interventions varies across audiences and target behaviors.en-USThis is an open-access article distributed under the terms of the Creative Commons Attribution License 4.0 (CC BY).Behavioral SciencesClimate ChangeHumansIntentionPolicybehaviorbehavioral scienceclimate changehumanpolicyArticleCopyright © 2024 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science.