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IELTS Free Online Writing Practice - The role of urban green spaces in improving air quality

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Topic: The role of urban green spaces in improving air quality

Question: In what ways can urban green spaces contribute to improving air quality, and what challenges need to be addressed in order to maximize their potential impact on air pollution levels in cities?

Model Answer:

Urban green spaces play a significant role in improving air quality in cities. These areas are essential for maintaining a healthy environment by reducing the concentration of pollutants in the atmosphere and providing various ecological benefits. There are several ways in which urban green spaces contribute to better air quality, including absorbing air pollutants, cooling the environment, and promoting biodiversity. However, there are also challenges that need to be addressed in order to maximize their potential impact on reducing air pollution levels in cities.

Firstly, urban green spaces help absorb pollutants from the atmosphere by acting as filters for harmful gases and particles released from vehicles, industries, and other sources. Trees and plants in these areas have the ability to uptake carbon dioxide and release oxygen, thereby helping to mitigate the effects of air pollution. Additionally, green spaces can reduce the heat island effect experienced in urban areas by providing shade and cooling the environment through the process of evapotranspiration.

Secondly, urban green spaces promote biodiversity, which in turn supports a healthy ecosystem. Biodiverse urban environments help maintain a balance in the natural processes that occur within the ecosystem, such as decomposition and nutrient cycling. This process contributes to improved air quality by maintaining a stable environment where pollutants are broken down at a faster rate than they accumulate.

Despite their numerous benefits, there are several challenges that need to be addressed in order to maximize the potential impact of urban green spaces on air pollution levels. One challenge is the limited availability of space for creating and maintaining green spaces in densely populated cities. Another challenge is the lack of funding and resources allocated for the establishment and management of these areas, which can hinder their ability to effectively absorb pollutants and promote biodiversity.

In conclusion, urban green spaces have a considerable role in improving air quality by absorbing air pollutants, cooling the environment, and promoting biodiversity. However, challenges such as limited space availability, funding, and resources need to be addressed in order to maximize their potential impact on reducing air pollution levels in cities.

Score: Band 8.5

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