Wood sales for heating have been growing across Europe, but as demand increases, people are facing rising prices and even reports of firewood theft. Business Daily presenter Rick Kelsey looks at how people are returning to wood burners to heat their homes, so they don't need to use as much gas this winter. We speak with Nic Snell, managing director of Certainly Wood, which bills itself as the biggest firewood supplier in the U.K. selling about 20,000 tons of wood a year, about sales and the type of people now burning the fuel. Erika Malkin, from the Stove Industry Alliance, tells us sales are now unprecedented and while prices have increased they have not risen anywhere near as much as other fuels. She estimates that heating the average home with wood is 13% cheaper than using gas. According to the Associated Press, demand for small firewood from state forests in Poland increased by 46 percent through to the end of August from a year earlier. To prevent theft in Germany, some forestry departments are experimenting with hiding GPS devices in logs. Nicole Fiegler, a spokesperson from the forestry department from North Rhine-Westphalia tells us how it works.A recent study by the Health Effects Institute, warned that the human cost of air pollution in Africa is among the highest on the planet. In sub-Saharan Africa, the death rate from air pollution is 155 deaths per 100,000 people, nearly double the global average of 85. Household air pollution - linked to use of solid fuels for cooking - is the largest risk factor for deaths there. Dr. KP Asante is a senior researcher on the Ghana Health Service, who’s data fed into the report, talks through solutions to use the fuel more efficiently.Producer / presenter: Rick KelseyImage: Fire; Credit: Getty Images