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Mobile-phone application using artificial intelligence to diagnose cassava disease gets funds for scale-up.
Award recognises Brazilian scientist for work that slashes nitrous oxide emissions through fertilizer use.
A home-made filter assembled with local materials cleans up water for irrigation and domestic use.
Invention wins African prize and attracts interest for potential to boost the efficiency of conventional turbines.
Paper strip similar to pregnancy test identifies cause of infection in minutes with a small blood sample.
Protection of forests and indigenous rights are not being targeted with climate funds, which favour energy projects.