Financial transfer to resolve the equity trade-off between developed and developing countries for national net-zero commitments

Financial transfer to resolve the equity trade-off between developed and developing countries for national net-zero commitments | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Financial transfer to resolve the equity trade-off between developed and developing countries for national net-zero commitments Shinichiro Fujimori, Reiho Han, Shiya Zhao, Shinichiro Asayama, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5972293/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 12 Feb, 2026 Read the published version in Communications Earth & Environment → Version 1 posted You are reading this latest preprint version Abstract Over 100 countries have announced net-zero emissions (NZE) goals. Although these NZE goals may be consistent with global 2°C climate stabilization, their impacts on equity between developing and developed regions remain poorly understood. This study investigated the extent to which individual national NZE goals represent climate policies that are far from equitable, and explored potential solutions using three illustrative scenarios. The results indicate that NZE without financial support causes large macroeconomic losses in developing countries. The financial transfer of approximately USD $2.7 trillion/year to developing regions, which is equivalent to 5% of household consumption in developed regions, is sufficient to alleviate such economic burdens. If developed countries should undertake additional physical emissions reductions, the required carbon dioxide (CO2) removal will scale to 26 Gt CO2/year in the late 21st century, equivalent to more than 10% of household consumption. We conclude that financial support presents a realistic solution to the equity concern associated with the NZE commitments of developed and developing countries. Earth and environmental sciences/Environmental social sciences/Climate-change mitigation Earth and environmental sciences/Environmental social sciences/Climate-change policy Earth and environmental sciences/Environmental social sciences/Socioeconomic scenarios Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SOM.pdf Supplementary Information Cite Share Download PDF Status: Published Journal Publication published 12 Feb, 2026 Read the published version in Communications Earth & Environment → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5972293","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":425164369,"identity":"27dc3245-edc1-4594-9600-3410ffb5a102","order_by":0,"name":"Shinichiro 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