Professor Frank Kelly of the Environmental Research Group at Imperial College London was part of a network of medical experts who met with 100 mayors across the world working on delivering effective climate change, which included campaigners Rosamund Adoo-Kissi-Debrah and Mum’s for Lungs founder Jemima Hartshorn, where discussion was led by London’s Sadiq Khan and Vice Chair for Europe, Milan’s Giuseppe Sala. Read more here.