How to….empower children to build their own sustainable city
By 2030, over 92% of UK citizens will live in cities, and as the recent youth strikes made crystal clear, the city dwellers of the future are deeply concerned about what sort of urban environment they will grow up into.
Can we turn sewage ‘sludge’ into something valuable?
Over the past few years, I have become an academic expert in ‘sewage sludge’ – the residual, semi-solid mix of excrement packed with microorganisms that is left behind within wastewater treatment plants.