NPR News: Study Shows Red Spruce Trees In New England Are Recovering After Decades Of Damage

Study Shows Red Spruce Trees In New England Are Recovering After Decades Of Damage
Years after New Englanders saw that acid rain caused by coal plants was killing red spruce trees, the trees are better. Researchers say the red spruce shows the positive impact of air pollution laws.

Đọc thêm tại NPR
at July 15, 2018 at 04:54AM
Health & Science