Can technology fight flooding in cities?
With more and more people moving to cities, informal settlements are expected to grow. When floods hit these unplanned places, it can be disastrous, as we often don\u2019t know much about them. Crucial questions often remain difficult to answer, like how many people live there, what are the buildings made of, and could they withstand a flood?\n \nIn the township of Alexandra in Johannesburg, the BBC\u2019s Nomsa Maseko visits a project using drones and artificial intelligence to shed some light on the situation, helping authorities prevent the worst impacts of flooding. And in Porto Alegre in the south of Brazil, we hear how an innovative digital map helped the emergency response \u2013 and will soon be available to all for free across the world.
Featuring: \nRodrigo Rocha, Partner at the Responsive Cities Institute, Porto Alegre \nDr Caroline Gevaert, Associate Professor at the International Institute for Geo-Information Science and Earth Observation, University of Twente \nNomsa Maseko, the BBC\u2019s South Africa Correspondent \n \nEmail us: theclimatequestion@bbc.com \n \nPresenter: Jordan Dunbar \nProducer: Osman Iqbal \nResearcher: Octavia Woodward \nEditors: Sophie Eastaugh and Simon Watts \nSound designer: Tom Brignell \nProduction Coordinator: Brenda Brown