Seeing SDG 6 from space: local-scale monitoring of piped water and sewage systems across Africa using satellite imagery and self-supervised learning
The episode discusses a paper using satellite imagery and self-supervised learning to monitor SDG 6 goals—clean water and sanitation—across Africa. The authors address the high cost and slow nature of traditional surveys by creating a low-cost, scalable system that provides fresh estimates every few months, showing strong accuracy against official statistics.