identify three processes in which a rooftop garden can reduce

There are several processes in which a rooftop garden can reduce the impact on the environment. Here are three examples:

1. Stormwater runoff: Rooftop gardens can help to reduce stormwater runoff by absorbing and retaining rainwater. Instead of water running off the roof and causing potential flooding and pollution, the plants in the rooftop garden soak up the water and release it slowly through evapotranspiration. This reduces the strain on local stormwater systems and helps to prevent erosion and water pollution.

2. Urban heat island effect: Rooftop gardens can mitigate the urban heat island effect by reducing the temperature of buildings and surrounding areas. The plants and soil in rooftop gardens provide insulation, shade, and evaporative cooling effects, which can lower the temperature of buildings and lessen the need for air conditioning. This can have a significant impact on energy consumption and can help to create a more pleasant and comfortable urban environment.

3. Carbon dioxide (CO2) emissions: Rooftop gardens can help to reduce carbon dioxide emissions by absorbing and sequestering CO2 from the atmosphere. Plants use photosynthesis to convert CO2 into oxygen, which helps to improve air quality and reduce the greenhouse effect. Furthermore, green roofs can act as a carbon sink, storing carbon within the soil and vegetation. This can play a role in offsetting carbon emissions from nearby buildings and contribute to mitigating climate change.