IPSO engages with scientists from all over the world, bringing together different disciplines and expertise to improve our understanding of the cumulative impact of multiple stressors on the ocean. The core scientists below have all been involved with one or more workshops and we also benefit from the contributions of many others.

Core scientists

Dr Frank Ackerman Director, Climate Economics Group

Dr Patricio Bernal Coordinator, IUCN High Seas Initiative

Dr Mebrahtu Ateweberhan Department of Life Science, University of Warwick, UK

Dr Jelle Bijma Alfred Wegener Institute for Polar and Marine Research; Adjunct Professor of Marine Geosciences at Jacobs University, Bremen, Germany

Assistant Professor William W.L. Cheung Fisheries Centre, University of British Columbia

Professor Robert J. Diaz Virginia Institute of Marine Science, USA

Dr Craig Downs Executive Director, Haereticus Environmental Laboratory

Professor Jason Hall-Spencer School of Marine Science and Engineering, University of Plymouth, UK

Professor Ove Hoegh-Guldberg Professor of Marine Science, University of Queensland; Director, Global Change Institute

Dr Thomas H. Hutchinson Centre for Environment, Fisheries and Aquaculture Science, Weymouth Laboratory, UK

Professor Dan Laffoley Principal Advisor on Marine Science and Conservation, IUCN Global Marine and Polar Programme, UK; Marine Vice-Chair for the World Commission on Protected Areas

Dr Daniel Pauly Fisheries Centre, University of British Columbia, Canada; Principal investigator, Sea Around Us Project

Professor Tony Pitcher Fisheries Centre, University of British Columbia, Canada

Professor N. Polunin School of Marine Science and Technology, Newcastle University, UK

Professor Philip Chris Reid Sir Alister Hardy Foundation for Ocean Science, University of Plymouth, UK

Professor Alex D. Rogers Scientific lead, IPSO; Department of Zoology, University of Oxford, UK

Professor Charles Sheppard School of Life Sciences, University of Warwick, UK

Reports from IPSO

The first IPSO workshop was held on the impacts of global climate change on coral reefs. The resulting paper, which was written amongst the scientists present, addressed the coral tipping point.

The coral reef crisis: The critical importance of <350ppm CO2


Veron J.E.N., Hoegh-Guldberg O., Lenton T.M., Lough J.M., Obura D.O., Pearce-Kelly P., Sheppard C.R.C., Spalding, M., Stafford-Smith M.G., Rogers A.D. (2009) The coral reef crisis: The critical importance of <350ppm CO2. Marine Pollution Bulletin 58 (10): 1428–1437.

On 21 June 2011, IPSO released a report summarising the key findings and recommendations of the initial State of the Ocean workshop, held earlier in 2011.

Summary report: International Earth System expert workshop on ocean stresses and impacts


Rogers, A.D. & Laffoley, D. d’A., 2011. International Earth system expert workshop on ocean stresses and impacts. Summary report. IPSO Oxford, 18 pp.

The summary report was supported by four case studies, which examine some of the conclusion areas in more depth.

Case study 1: The potentially deadly trio of factors – warming, acidification and anoxia – affecting today’s oceans
Watch a video on Case study 1 here.

Case study 2: End of paradise – Coral reefs facing multiple attacks

Case study 3: Pollution and marine species – New challenges of an old problem
Watch a video on Case study 3 here.

Case study 4: A vanishing resource – The tale of the Chinese Bahaba

On 30 September 2013, IPSO published the ‘State of the Ocean Report 2013’ in the Marine Pollution Bulletin, which comprised a set of five papers on ocean stresses, impacts and solutions that were produced by leading international experts to present the key findings of the two State of the Ocean workshops – in 2011 and 2012.

State of the Ocean 2013 report


Rogers A.D. & Laffoley D. (2013) Introduction to the Special Issue: The Global State of the Ocean; Interactions Between Stresses, Impacts and Some Potential Solutions. Synthesis papers from the International Programme on the State of the Ocean 2011 and 2012 Workshops. Marine Pollution Bulletin. 74: Issue 2, 491–552; 30 Sept 2013.