Global warming effects of cropland expansion by reduction of biogenic secondary organic aerosols

Global warming effects of cropland expansion by reduction of biogenic secondary organic aerosols | 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 Physical Sciences - Article Global warming effects of cropland expansion by reduction of biogenic secondary organic aerosols Pingqing Fu, Jialei Zhu, Joyce Penner, Chaopeng Hong, Hao Liu, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4667799/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 24 Jun, 2025 Read the published version in Nature Geoscience → Version 1 posted You are reading this latest preprint version Abstract Cropland expansion has been the most significant global land use change since industrialization. However, assessments of radiative forcing from land use change have overlooked the secondary organic aerosol (SOA) radiative effects of cropland expansion. Sensitivity experiments using an Earth system model with cutting-edge SOA processes reveal a ~10% decrease in biogenic SOA burden due to cropland expansion since industrialization, weakening SOA's scattering effect on radiation and cloud formation, resulting in a 146 mW m-2 decline in its cooling effect, equivalent to 8% of CO2-induced warming since industrialization. This effect is projected to increase by approximately half under future climate warming and reduced emissions. Policies addressing food security and climate change should account for the radiative impact of biogenic SOA from cropland expansion. Earth and environmental sciences/Climate sciences/Climate change/Climate and Earth system modelling Earth and environmental sciences/Environmental social sciences/Environmental impact Full Text Additional Declarations There is NO Competing Interest. Supplementary Files ZhuetalSInature.pdf Supplementary Information Cite Share Download PDF Status: Published Journal Publication published 24 Jun, 2025 Read the published version in Nature Geoscience → 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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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-4667799","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Physical Sciences - Article","associatedPublications":[],"authors":[{"id":324464472,"identity":"ff676bc2-99b9-49fd-a339-2f37f6d79af0","order_by":0,"name":"Pingqing 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