Greener but not cleaner? How trees can worsen urban air pollution
Monday, August 3, 2015 - 06:30
in Earth & Climate
No one enjoys choking on smog, but are more trees really the answer for polluted city air? It's not as clear-cut as you might think. Air pollution is clearly a problem for health and well-being – and as more and more people across the world move to live in megacities, they could miss out on the fresh air associated with the green countryside.