Hazards of indoor air pollution

In "One Planet," Mark Whitaker addresses the problem of indoor air pollution, now recognized as one of the major health issues in developing countries, in the conclusion of a two-part series. For many people, open wood fires may conjure up cozy, warm and atmospheric images, but for people in developing countries there are no such romantic connotations. Firewood is often the only source of domestic energy and is used on open wood burning fires - filling the home with hazardous smoke. Whittaker reports from the Guatemalan Highlands - the site of the first controlled trial into the effects of indoor air pollution (led by Professor Kirk Smith ) - and looks at links between domestic wood smoke and childhood pneumonia.