W e are currently witnessing the fourth industrial revolution 1 . Technological innovations have altered the way in which economies operate and how people interact with built, social and natural environments. One area of transformation is the emergence of robotics and autonomous systems (RAS), defined as technologies that can sense, analyse, interact with and manipulate their physical environment 2 . RAS include unmanned aerial vehicles (drones), self-driving cars, robots able to repair infrastructure, and wireless sensor networks used for monitoring. RAS therefore have a large range of potential applications, such as autonomous transport, waste collection, infrastructure maintenance and repair, policing 2,3 and precision agriculture 4 (Fig. 1). RAS have already revolutionized how environmental data are collected 5 and how species populations are monitored for conservation 6 and/or control 7 . Globally, the RAS market is projected to grow from $6.2 billion in 2018 to $17.7 billion in 2026 8 .Concurrent with this technological revolution, urbanization continues at an unprecedented rate. By 2030, an additional 1.2 million km 2 of the planet's surface will be covered by towns and cities, with ~90% of this development happening in Africa and

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