Our Contributors
Discover the By Degrees authors
Prof. Toby Peters
ACES Programme Lead and Director of the Centre for Sustainable Cooling
Centre for Sustainable Cooling,
University of Birmingham
Toby’s research involves whole-system solutions to transition to sustainable cooling and cold-chain, and he is responsible for a series of flagship programs across the United Kingdom, Europe, and the Global South.
Toby is also a senior advisor on cooling and cold-chain for multiple international development organizations and a regular of author/co-author of key reports.
Dr. Tim Fox
Independent Consultant in Climate Change Mitigation and Adaptation; Lead author of The Hot Reality: Living in a +50˚C World report.
Clean Cooling Network
Dr Fox is a Chartered Engineer (CEng) and Fellow of the Institution of Mechanical Engineers (FIMechE), where he is Chair of the Biennial International Conference on Climate Change Adaptation and Resilience as well as a past Chair of the Process Industries Division. Tim represents the IMechE on the UK Infrastructure Operators Adaptation Forum and the Sustainable, Resilient Infrastructure Community Advisory Body of the Institution of Civil Engineers. He is also a member of the Adaptation to Climate Change Group of BSI Committee SES/001/07, a Co-Founder of the International Fugitive Emissions Abatement Association (IFEAA), and a Fellow of the Royal Society of Arts (FRSA).
Tim has been lead author of numerous peer-reviewed papers, research reports, thought leadership reports and policy papers and has been featured in hundreds of press articles, op-ed pieces, broadcast media appearances, conferences and webinars. In 2022, he was awarded the 'Most Distinguished Achievement Award' by the IMechE for his work on clean energy, climate change mitigation and adaptation, and sustainability. The award citation read: "Tim has made and continues to make an outstanding contribution to mechanical engineering at national and international levels in areas such as climate change, energy and environmental issues. His efforts have influenced policymakers at a high level and raised the profile of mechanical engineering thus capturing the attention and respect of the engineering community and wider public as a whole."
Prof. Judith Evans
London South Bank University
The current focus of her work is on efficiency and carbon/energy reduction as well as design and performance of refrigeration equipment. This covers cold chains in the UK and Europe but also in low-income countries such as Bangladesh, India, Kenya and Rwanda.
Judith has published 153 papers, 5 books and 17 book chapters. Professionally she is a Fellow of the IOR (Institute of Refrigeration), a member IOR national Technical Committee, president of the IIR (International Institute of Refrigeration) C2 commission (food science and engineering), vice presidents of the CaRe (careers in refrigeration) working party and the cold chain in warmer climates working party and a member of the D1 (retail display cabinets) committee. She is also the UK, IOR representative to the IIR and also an editor of the Journal of Refrigeration.
Jean Pierre Musabyimana
Research Lead
Africa Centre of Excellence for Sustainable Cooling and Cold Chain (ACES)
In this capacity, he actively contributes to conceiving and implementing innovative cold chain models for vaccines, diagnostics and antibody development that span sectors and geographies, applying renewable energy refrigeration, IoT-enabled temperature monitoring, and robust biobanking to safeguard biologicals and bolster supply chain integrity in low-resource settings.
An infection biologist with a PhD in Cell and Applied Infection Biology and dual MScs in Biotechnology & Bioinformatics and Global Health Delivery, Jean Pierre leverages his expertise in structural/comparative genomics, vaccine and therapeutic R&D, and advanced bioinformatics pipelines to align laboratory innovation with field needs.
He forges multisectoral partnerships with universities, industry, and government to pilot context-adapted interventions, drawing on One Health insights into urban agriculture, food systems, and resilience and addressing food safety risks through integrated approaches.
Regionally, he co-leads pandemic surveillance, genomics and climate modelling consortia, most notably the EDCTP3-funded GREAT LIFE initiative, which deploys field-portable genomics and novel diagnostics across the African Great Lakes, advancing early detection and response. As Co-PI of the KIVU JUA consortium, he spearheads Mpox epidemiology and immunology research in Central Africa, contributing to the WHO Mpox Genomic Surveillance Community of Practice and serving on Africa CDC’s RISLNET committee. He also co-leads malaria drug resistance surveillance in East Africa, integrating NGS workflows into routine monitoring for artemisinin resistance.
Passionate about sustainable cooling, Jean Pierre weaves environmental engineering, data analytics, and One Health principles to reinforce vaccine delivery, food safety, and overall health system resilience, positioning ACES and Rwanda as models for cross-sectoral, climate-smart public health preparedness.
Prof. Ian Thomson
Professor of Accounting and Sustainability
University of Dundee
Ian has been researching topics relating to responsibility, sustainability and accountability for over 30 years. This research has included studies on the implementation of cleaner technology, effective stakeholder engagement, risk governance in water and salmon farming, sustainable development indicators, government policy making, climate change, effective pedagogy, use of accounting by activists, human rights, international development programmes, and football clubs.
Craig Girdlestone
Danston Ltd
Astrid Genard
Head of International Operations
Africa Centre of Excellence for Sustainable Cooling and Cold Chain (ACES)