We can help clean the air we breathe everyday with planting a variety of plants in our front gardens–together. My garden may have poppies and next door you may have lavender and across the way our neighbour loves yarrow and verbena. Over time our entire road becomes a garden with various plants that we enjoy growing and that together create a supportive space for all the beetles and butterflies and bees we need to pollinate our veg patches.
If you like reports and research: Phyto-Sensor-Toolkit