"Today around 2.8 billion people – 38% of the global population and almost 50% of the population in developing countries – lack access to clean cooking. Most of them cook their daily meals using solid biomass in traditional stoves. In 25 countries, mostly in sub-Saharan Africa, more than 90% of households rely on wood, charcoal and waste for cooking. Collecting this fuel requires hundreds of billions of hours each year, disproportionately affecting women and children. Burning it creates noxious fumes linked to 2.8 million premature deaths annually."
Thus reports "Chapter 3: Access to Clean Cooking,:" from Energy Access Outlook 2017: From Poverty to Prosperity, published in October 2017 by the International Energy Agency and the OECD. The report continues:
"Progress on access to clean cooking has been gathering momentum in parts of Asia, backed by targeted policies focussed mainly on the use of LPG [liquified petroleum gas]. In China, the share of the population relying on solid fuels for cooking declined from over one-half in 2000 to one-third in 2015. In Indonesia, the share of the population using solid biomass and kerosene fell from 88% in 2000 to 32% in 2015. Despite these efforts, the number of people without clean cooking access has stayed flat since 2000, with population growth outstripping progress in many countries. In sub-Saharan Africa, there were 240 million more people relying on biomass for cooking in 2015 compared to 2000."
The report estimates that an investment of an additional $42 billion, above and beyond what is already happening, would be needed by 2030 to provide access to clean cooking for the 2.3 billion people who otherwise will not have access to clean cooking by that time. At one level, $42 billion is a lot of money: at another level, it's almost an absurdly cheap price to pay for the potential benefits.
Other chapters of the report have a useful overview of the progress toward all people having access to electricity. The big success story in the last 20 years or so is India. The lagging region is sub-Saharan Africa.
Timothy Taylor is an American economist. He is managing editor of the Journal of Economic Perspectives, a quarterly academic journal produced at Macalester College and published by the American Economic Association. Taylor received his Bachelor of Arts degree from Haverford College and a master's degree in economics from Stanford University. At Stanford, he was winner of the award for excellent teaching in a large class (more than 30 students) given by the Associated Students of Stanford University. At Minnesota, he was named a Distinguished Lecturer by the Department of Economics and voted Teacher of the Year by the master's degree students at the Hubert H. Humphrey Institute of Public Affairs. Taylor has been a guest speaker for groups of teachers of high school economics, visiting diplomats from eastern Europe, talk-radio shows, and community groups. From 1989 to 1997, Professor Taylor wrote an economics opinion column for the San Jose Mercury-News. He has published multiple lectures on economics through The Teaching Company. With Rudolph Penner and Isabel Sawhill, he is co-author of Updating America's Social Contract (2000), whose first chapter provided an early radical centrist perspective, "An Agenda for the Radical Middle". Taylor is also the author of The Instant Economist: Everything You Need to Know About How the Economy Works, published by the Penguin Group in 2012. The fourth edition of Taylor's Principles of Economics textbook was published by Textbook Media in 2017.