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Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Please note that all times are shown in the time zone of the conference. The current conference time is: 10th Sept 2026, 07:06:44pm CEST (Norway)

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Daily Overview

Session

Thematic Session 4: Using economics to bring the real world into policy (HYBRID)
Location: Auditorium M: Jan Mossin
Session Chair: Ian J. Bateman, University of Exeter, UK
Session Chair: Ben Balmford, University of Exeter

Presentation 3

Biodiversity offsets perform poorly for both people and nature, but better approaches are available

Mattia C. Mancini¹, Rebecca M. Collins², Ethan T. Addicott¹, Ben J. Balmford¹, Amy R. Binner¹, Joseph W. Bull³, Brett H. Day¹, Felix Eigenbrod², Sophus O.S.E. zu Ermgassen³, Michela Faccioli⁴, Carlo Fezzi⁵, Ben D. Groom¹, Eleanor J. Milner-Gulland³, Nathan Owen¹, Emma Wright⁶, Diana M. Tingley¹, Ian J. Bateman¹

1: LEEP Institute, University of Exeter, United Kingdom; 2: The School of Geography and Environmental Science, University of Southampton; 3: Department of Biology, University of Oxford; 4: School of International Studies & Department of Economics and Management, University of Trento; 5: Department of Economics and Management, University of Trento; 6: Joint Nature Conservation Committee

Sustainability requires we restore biodiversity and wider ecosystem services, yet developments such as new housing inevitably cause environmental impacts. Accordingly developers are increasingly required to resource offset projects, delivering biodiversity or wider environmental net gains. However, analysis of offsets in England show the large majority are conducted within development sites rather than being targeted towards better opportunities for net gains elsewhere. Here we compare current and alternative approaches to offsetting considering the biodiversity gains, ecosystem service co-benefits and economic costs they generate. Results confirm that current practice performs relatively poorly across all criteria. Analysis shows that by incorporating ecological and economic information into the targeting of offsets they can provide a significant contribution to addressing the challenge of biodiversity loss or deliver substantial ecosystem service co-benefits to disadvantaged communities. The analytical methods and results presented here could support a substantial improvement in the operation and outcomes of biodiversity offsetting globally.