Potato spoons, pipe bots and mini wind turbines on Dyson awards list

Many of the 20 contenders for this year’s prestigious global prize focus on ways to create a more sustainable futureCutlery made from potato peelings and a robotic cleaner that can tackle pollution in rivers, lakes and canals are among the groundbreaking international designs shortlisted for the prestigious annual James Dyson award.Over half the world’s population currently live in cities, according to the United Nations – a proportion expected to rise to seven in 10 people by