Present refrigeration and cold transport technologies typically use either diesel fuel (expensive and a source of pollution) and/or electric power (often not available in rural areas). Promoting the expansion of existing technologies for cold-chain development will have the side effects of increasing pollution, greenhouse gas production and associated climate change. Clean cold-chain development is an environmentally sustainable way to achieve essential cooling and reduction in the post-harvest losses.

CABI’s Plantwise programme runs local plant clinics in 24 countries across Africa, Asia and Latin America where trained ‘plant doctors’ provide on-the-spot diagnosis and advice for farmers who bring samples to the clinics. A database that records each consultation and shares knowledge across clinics and countries continually builds the ability of the programme to respond to farmers’ needs. The programme embodies key principles of an innovation systems approach.