Home Firewood Burning Major Winter Pollution Source

A new study found that burning firewood at home in winter makes air pollution worse.

It causes about 22% of tiny, harmful particles in the air, which can make people sick.

The study says this pollution leads to about 8,600 early deaths each year in the US.

The researchers suggest using cleaner ways to heat homes, like electric heaters, instead of burning wood.

They found that smoke from wood burning in suburbs can even travel to cities, making the air dirty there too.

The study used special computer models to track how the pollution moves in the air.

The researchers say that even though not many homes use wood for heat, switching to cleaner options could make the air much better.