Climate change has increased rainfall. This has led to droughts and storms that produce large amounts of water. These floods can damage urban infrastructure. The sponge city, which has a green infrastructure, is an alternative to this. It allows for the absorption, storage, purification, and infiltration of surface water.

What is a sponge town? These cities are designed to absorb rainwater from the places it falls using sustainable urban drainage systems that can be rented from their green infrastructure. It is also prepared to minimize the effects of flooding, inundation, and inundation.

Parque Minghu / Turenscape. Foto Cortesia de Turenscape
Parque Minghu / Turenscape. Foto Cortesia de Turenscape
Parque Minghu / Turenscape. Foto Cortesia de Turenscape
Parque Minghu / Turenscape. Foto Cortesia de Turenscape

Green infrastructure technologies include elements that increase soil permeability for rainwater absorption. We can mention parks, drainage pavements and rain gardens. Learn more about each one. You can also combine these elements with the roads and buildings in the city, which in this case comply with a social agenda, to help in the natural flow or retention of water.

<img src="https://dzszz.com/wp-content/uploads/2022/04/ca4e41c9a56300914a1edc7bfa3102d8.jpg" alt="Foto por <a href="https://unsplash.com/@nadine3?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Nadine Marfurt</a> no <a href="https://unsplash.com/?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash
Foto por Nadine Marfurt no Unsplash
<img src="https://dzszz.com/wp-content/uploads/2022/04/9c6939161c2ce6bdcdacc8453ac18093.jpg" alt="Berlim. Foto por <a href="https://unsplash.com/@fionngrosse?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Fionn Große</a> no <a href="https://unsplash.com/?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash
Berlim. Foto por Fionn Große no Unsplash

It is important to remember that it is not easy to invest in green infrastructure. It is essential to have a multidisciplinary team, which includes different municipal bodies and areas with knowledge, create a database and complete analysis that includes information about the watershed, soil, rainfall, insolation and winds. This will allow for better design of interventions. It is a long-term project, but it has many benefits. It reduces the risk of flooding and floods, and improves the quality of water, which makes it more potable and safer to reuse. Other important points should be made, including improving the microclimate, enhancing urban land and increasing biodiversity. Green areas increase heat island protection, biodiversity, and provide leisure for the people. Groundwater quality can also be improved depending on how much is being planted.