Cleaner heating policy lowers blood pressure in China
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Researchers followed over 1,200 adults in rural China to study the health effects of the country’s Clean Heating Policy, which replaced coal heating with electric or natural gas.
The McGill University-led team tracked residents in 50 villages, comparing those that adopted the policy to those that did not. They measured blood pressure, indoor air pollution, and temperature over four years to assess the impact of cleaner heating sources.
The study revealed that adults in villages implementing the Clean Heating Policy experienced a decrease in blood pressure. Although the reduction was small for each person, scientists believe the collective impact could be substantial given the number of households the policy covers. High blood pressure is a major risk factor for cardiovascular disease globally. About one-third of the world’s population still uses polluting fuels like coal, wood, and crop waste for cooking and heating.
Burning these fuels creates air pollution that increases the risk of heart disease, stroke, and respiratory problems. This research is one of the first to evaluate a government energy policy while it was being implemented, rather than in a laboratory. The researchers hope their findings will inform future energy transition programs in other countries where people still rely on solid fuel heating.
They also suggest that evaluating environmental policies for their health benefits is an important step in justifying investments in cleaner energy.
