Rob Mackenzie

  • Do Trees Really Help Clean The Air In Our Cities?

    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.