Gas-Burning Stoves Still Leak Methane When Turned Off

To gauge just how much methane gas that stoves are leaking, the scientists measured methane and nitrogen oxides released in 53 homes in California. The researchers studied the stoves during combustion, ignition and when they were shut off. They looked at 18 brands of gas cooktops and stoves ranging in age from three to 30 years. The highest emitters of methane were cooktops that were ignited via a pilot light. The cost or the age of the stove had no bearing on how much methane was emitted. Surprisingly, the researchers discovered that more than three-quarters of methane emissions happened when the stoves were turned off. That implies that most of the problem can be blamed on faulty gas fittings and connections to the stove and in-home gas lines.

The solution to all this leaking methane? According to researchers: an electric stove.

“I don’t want to breathe any extra nitrogen oxides, carbon monoxide or formaldehyde,” said study senior author Rob Jackson, the Michelle and Kevin Douglas provostial professor and professor of Earth system science. “Why not reduce the risk entirely? Switching to electric stoves will cut greenhouse gas emissions and indoor air pollution.”

Donna Fuscaldo is a contributing writer and editor focusing on personal finance and health. She has spent over two decades writing and covering news for several national outlets, including The Wall Street Journal, Forbes, Investopedia and HerMoney.

This story was originally published on February 9, 2022. It has been updated to reflect new information.

Donna Fuscaldo is a contributing writer and editor focusing on personal finance and health. She has spent over two decades writing and covering news for several national publications including The Wall Street Journal, Forbes, Investopedia and HerMoney.