Do Trees Really Help Clean the Air in Our Cities?

It may sound like a no-brainer to say that trees improve air quality. After all, we know that trees absorb the greenhouse gas carbon dioxide (CO₂), and that their leaves can trap the toxic pollutants nitrogen dioxide (NO₂), ozone, and harmful microscopic particles produced by diesel vehicles, cooking and wood burning. »11/04/15 3:30am11/04/15 3:30am


Greener, Not Cleaner: How Trees Can Worsen Urban Air Pollution

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… »8/03/15 3:45am8/03/15 3:45am

Wearable Air Quality Sensors Could Help Us All Breathe Easier

Imagine if you could locate the healthiest route for your afternoon jog, the fresh airiest one that would keep you from breathing the pollutants that cars barf out into the atmosphere. It might change every day as these pollutants move around. But you'd be ready, because you'd be wearing an air quality sensor. »12/12/14 4:35pm12/12/14 4:35pm