Scientist · Author · Speaker

Climate and nature futures — with realism and hope

How our food, energy and economic systems can change fast enough to avoid the worst of the climate crisis — told through evidence, honesty about the risks, and clarity about where real progress is already happening.

British Academy Global Professor, Oxford Martin School, University of Oxford

Visiting Professor, Institute of Environmental Sciences (CML), Leiden University

Senior Research Fellow, Wellbeing Research Centre, University of Oxford

Frontiers Planet Prize International Champion, 2023

Paul Behrens speaking on stage
The Best of Times, The Worst of Times — book cover

The Best of Times, The Worst of Times

Futures from the frontiers of climate science, told in paired chapters of pessimism and hope. The Indigo Press, 2020.

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Food and Sustainability — book cover

Food and Sustainability

The interdisciplinary textbook, edited and co-authored. Oxford University Press, 2020.

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Latest research

All research →
Frontiers in Sustainable Food Systems · 2026Vertical farming economics: crop performance targets for cost-competitive vertical farmingVertical-farmed lettuce can already undercut Dutch greenhouse costs; tomatoes still need faster cycles and better light-use efficiency. The International Journal of Life Cycle Assessment · 2026Guidance on integrating marine environmental impacts of ocean alkalinity enhancement into life cycle assessmentHow ocean alkalinity enhancement affects marine ecosystems, and why current life-cycle models capture it only partly. Nature Sustainability · 2026Demand-side factors as dominant drivers of resource efficiency in the concrete aggregates cycleDemand-side levers such as longer building lifespans, reuse and lower stock intensity drive resource efficiency more than cleaner production. Communications Sustainability · 2026Environmental damages of the top ten percent consumers exceed global climate and biodiversity funding gapsThe richest 10% of consumers cause environmental damage that exceeds global climate and biodiversity funding gaps. Cell Reports Sustainability · 2026Aligning circular economy and low-carbon economy for a sustainable built environmentArgues that circular-economy and low-carbon strategies must be aligned to achieve a sustainable built environment, since the two can otherwise pull in… Nature Food · 2026Stranded assets in European agriculture during food system transformationsExamines how transforming European food systems towards sustainability could leave agricultural assets stranded, identifying where capital may lose value as…
Research covered by BBCThe GuardianReutersPOLITICOFinancial TimesBloomberg
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