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
Talks and Interviews
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In the media
All media →Britons will struggle to put food on table as heatwaves become the norm, scientists warn
Warning 1976-style heatwave could become normal
The World’s Top Consumers Cause Up to $5.7 Trillion in Environmental Damage Every Year
‘Mega-consumers’ of food and energy cost environment $5.7tn a year, study finds
How a ‘Godzilla’ El Niño could plunge the world into irreversible chaos
The climate is changing, and so too must Britain
Books
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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
The interdisciplinary textbook, edited and co-authored. Oxford University Press, 2020.
Read more →Latest research
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Nature Food · 2026Dietary environmental impacts and quality differ by socio-demographic characteristicsMaps the climate, water and land footprints of diets in 165 countries, finding healthier diets consistently have lower impacts.
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.
Environmental Research Letters · 2026Small-scale farmers critical to curbing deforestation linked to forest-risk commoditiesShows that small farms under 2 ha account for most forest-linked production of EUDR-listed commodities (91% of rubber, 81% of palm oil, 53% of coffee, 60% of…
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.