Final answer:
Benefits and challenges of green roofs explained in relation to carbon dioxide absorption, urban climate regulation, maintenance time, and cost.
Explanation:
Benefits of green roofs:
- Absorption of carbon dioxide: Green roofs help absorb carbon dioxide, reducing greenhouse gases and combating climate change.
- Regulation of urban climate: Green roofs lower urban air temperatures, reduce the urban heat island effect, and provide insulation for buildings.
Challenges of green roofs:
- Time needed to care for plants: Green roofs, especially intensive ones, require regular maintenance such as irrigation and plant removal.
- Cost of maintenance: The maintenance costs of green roofs can be a challenge, particularly for more complex and intensive designs.
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