Gas flaring, the burning off gas coming out of oil wells is a common practice in oil-producing developing countries. This practice is harmful to human health, especially because of pollutants. This research focuses on Nigeria, where over 10 percent of all gas produced is flared and about 2 million people are estimated to live within 4 kilometres of a flare site. This paper uses child health data from Demographic Health Surveys and satellite-detected data on gas flaring to examine associations be