The Economic Times

New York wants more tree cover; a 2024 study found that planting certain species could worsen summer ozone when their emissions mix with traffic pollution

While New York Citys tree planting efforts aim to enhance urban greenery, they may unintentionally worsen air quality. Species such as oaks and sweetgums release isoprene, which can interact with vehicle emissions to elevate ozone levels. To counteract this issue, the city is prioritizing a variety of tree species and is focusing on reducing nitrogen oxides, essential for improving air quality in the region.