Death and illness from toxic emissions are avoidable. Cop26 must deliver bold action | Sadiq Khan and Maria Neira

All Londoners live above WHO's recommended air quality levels. Expanding Ulez will mean fewer polluting vehiclesAir pollution is a global health crisis and tackling it is a crucial part of our response to the climate emergency. Toxic air is leading to premature deaths, making people sick, harming the health of our children and inflicting profound and lasting damage on our precious natural environment.In a week's time, leaders from around the world will meet at the Cop26 climate conference in Glasgow to try to agree on the vital action we need to protect our planet and to save lives. Health professionals will be attending the conference in record numbers, including a group of paediatricians who are cycling from London's famous Great Ormond Street Hospital for Children to raise awareness of the devastating effect of air pollution on children's health, including stunted lung growth.Sadiq Khan is mayor of London. Dr Maria Neira is WHO director, Public Health, Environmental and Social Determinants of Health Continue reading...