In 2015, a law named ‘Green Roof Law’ was passed as part of the French parliament’s effort to make the city greener. This requires all new buildings with rooftops to be covered with either solar panels or plants. However, this only applies to commercial zones. Despite that, this concept has become popular in some cities like Paris that even owners of old buildings follow the law out of their own free will.
This makes the streets cooler, keeps water and air cleaner, and provides food for people and habitat for animals. Here are several factors how having green spaces in cities affect the environment:
- Green spaces give cooler, healthier air
Either during summer or winter, having trees around greatly affects air quality. It purifies polluted air, keeps the air cooler during summer and hotter during winter. For instance, notice how the trees help by providing shaded surfaces or areas where drivers can park their cars into during hot, summer days. Rooftops are good outlets for gardening as this captures the airborne pollutants and filters toxic gases from above making the people living around healthier and safe.
- Helps reduce water pollution
With rooftop gardens, it allows the rainwater to be absorbed in soil lowering the possibility of flood and water pollution.
- Lowers heat and air conditioning consumption
Since having more green spaces creates better outdoor air quality, this also means lesser electricity consumption because the usage of heating and cooling systems are reduced.
- Produces local, safe, and healthy food
Having green spaces can be a door for several opportunities; this will not just help one to enhance or develop gardening skills but also save by producing fresh, local and healthy food for personal consumption or for supplying your restaurant’s food stock.
- Provides shelter for wildlife
This does not just benefit one but rooftops can also be of use to shelter birds, bees, and butterflies around the city.
As this concept becomes popular in western countries, we look up to the day that this also becomes common in all countries around the world, including the Philippines.