The Aquanauts discover that 70% of the world’s population are expected to live in urban areas by 2050, meaning more water than ever will be needed – and whilst rainfall is set to increase as a result of climate change, it’s more of a conundrum than a cure because of the risk of flooding…

Marina Ventura and The Micro-Gridders: The Super Squad
05:17

The Circular Trail: a free Time Hunters history walk around the City of London
46:10

Marina Ventura and The Micro-Gridders: The Power Stash
05:25