Study: Despite efforts, China fails to curb climate-changing methane emissions from coal mines
China, already the world’s leading emitter of human-caused greenhouse gases, continues to pump increasing amounts of climate-changing methane into the atmosphere despite tough new regulations on gas releases from its coal mines, a study shows.
China is the world’s largest producer and consumer of coal, which accounts for approximately 72 percent of the country’s electricity generation. While data show that coal production has increased in China, it has been unclear until now much methane gas, or CH4, has increased. Methane that is released during coal mining is responsible for the majority of coal-related CH4 emissions and is likely the largest human-caused CH4 source in China.
“Our study indicates that, at least in terms of methane emissions, China’s government is talking the talk, but has not been able to walk the walk,” says Scot Miller, an assistant professor of environmental health and engineering and of earth and planetary sciences at Johns Hopkins University. He is the first author of the study, which is described today in the journal Nature Communications.