Campaigners say pollution levels in street in Herne Hill were far higher when private schools were open

Mehmet Oz has been nominated by Donald Trump to lead the Centers for Medicare and Medicaid Services, working alongside vaccine-sceptic Robert F Kennedy Jr. Rhian Lubin reports

Oz, who has a history of making degrading remarks about women, has no government experience. As a candidate for Senate in 2022, he expressed opposition to abortion at any point in pregnancy.