The city of Utrecht in Holland took a number of measures in order to improve the air quality in the city. One of these measures is covering the roofs of hundreds of bus stops in plants as a gift to honeybees. A total of 316 have been covered in greenery, mostly sedum plants.
These succulents are great for improving air quality, but they are also good for helping to support dwindling pollinator populations. The succulents are good for storing rain water, capturing dust particulates from the air, and providing a cooling environment in the summertime.
On top of that, Utrecht is offering subsidies to city residents who want to replace their own worn-out rooftops with sedum roofing or solar panels.
Workers who drive around in electric vehicles take care of the roofs and the bus stops have all been fitted with energy-efficient LED lights and bamboo benches.
