Malawi's life-saving stoves
Smoke from open-fire cooking kills more than four million people every year. In Malawi, a research team is conducting the largest ever study into the effects of indoor smoke and hopes its results will save millions of young lives.
The study focuses on whether replacing indoor cookfires with cleaner-burning stoves can prevent pneumonia in young children.
Here, lead researcher Dr Kevin Mortimer explains his hopes for a potentially life-saving project.
Dr Mortimer is a senior clinical lecturer and consultant in respiratory medicine at the Liverpool School of Tropical Medicine and Aintree University Hospital NHS Foundation Trust. The Cooking and Pneumonia Study is funded, in part, by the UK Medical Research Council.