The requirement for cleaner and greener environments has been underlined as urbanisation progresses. Urban planning experts and environmentalists have emphasised how unsustainable urban concrete jungles and shrinking natural areas are signs of unhealthy cities. This blog will discuss the necessity for green spaces as well as strategies for increasing the proportion of green space to concrete.
According to experts, 68 percent of the world’s population will reside in cities by the year 2050. Urban areas must be transformed into healthy places to live as cities expand and more people relocate into existing congested regions. Geen areas are therefore essential for a city for a variety of reasons.
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FACTORIES AND PLANTS THAT ARE GENERATING EXCESSIVE HEAT
Concrete constructions are to blame for this impact in towns and cities. These have a propensity to absorb heat and are unable to reflect it back into the surrounding air. This traps heat that would otherwise be able to escape to the atmosphere along with heat produced by people, vehicles, businesses, and industries, greatly elevating the city’s temperatures.
This may raise the temperature in cities by 3–4°C over that of the countryside nearby, creating a vicious cycle of rising energy demand. As a result, there are more fossil fuels consumed, which increases air pollution.
Temperature increases are linked to heat-related diseases and mortality, including respiratory problems, cramping from the heat, heat exhaustion, and non-fatal heat stroke. Naturally occurring heat waves, which are periods of excessively hot and frequently humid weather, can also be made worse by heat islands. Particularly at danger during these occurrences are sensitive groups including children, the elderly, and people who already have health issues.
SMOGGY AIR
Pollutants that are present for an extended period of time produce poisonous smog, which is bad for the environment and dangerous for human health.
A prime example is the pollution in Lahore, which has been shown to be dangerous not just for human health but also for agricultural and daily life. Transportation is halted by haze, which has an impact on the region’s trading operations in a chain.
WATER QUALITY
Higher temperatures can also harm aquatic ecosystems in coastal communities or cities adjacent to natural water bodies. Urban heat islands are to blame for this. As a result of the heated runoff rainwater caused by hot concrete surfaces, which then drains into storm sewers, the water temperature in streams, rivers, ponds, and lakes is also heated.
Because of the frequent temperature variations in aquatic habitats, the metabolism and reproduction of marine life are determined by the water temperature, which can drastically modify these processes. Aquatic life may die as a result of this.
According to one research, urban streams get hotter on average than streams in wooded regions, and the heated runoff from urban materials causes urban stream temperatures to rise by almost 7°F after minor storms. Natural streams and lakes may potentially permanently dry up if temperatures increase faster than the meltwater.
These factors make having green areas in cities important. Building designs for housing societies with designated green areas are defined by the planning authorities of several cities. To establish a healthy and sustainable city, the Municipal Town Planning Department must take these factors into account. Additionally, green places are important for human health.
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GREEN SPACE IMPACTS ON HUMAN HEALTH
Green areas have a significant impact on human health, according to studies. In addition to just “feeling” better being near greenery, it has been scientifically demonstrated that people’s general health also improves.
According to studies, towns with lots of parks fight the obesity and diabetes epidemics. People who had easy access to green space had better health overall and reduced death rates, according to recent research from the Netherlands and Japan. Even somewhat inactive interactions with nature, like seeing it from a window, can reduce stress and blood pressure.
Furthermore, being around greenery improves our capacity to focus on both the job at hand and our unconsciously observed environment. Additionally, it demonstrated how green areas foster a feeling of community and attract neighbours to socialise.
Here are some easy methods to add more greenery to cities now that we know how important green areas are for maintaining both the environment and human health.
WHAT ARE SOME WAYS TO CREATE GREEN SPACES IN CITIES?
The development of parks within each housing society. The planting of trees along highways. Particularly those that the busiest, and the preservation of open spaces in urban areas are ways to generate green spaces. Since saplings planted in protected or preserved regions have the potential to develop into thick forests in the future, no unauthorised individuals should be permitted to enter these places.
Town Municipal Authorities should make sure that there is an equal amount of land grassed in cities. Environmentalists should conduct study on local tree species and plant them rather than the ones that are not compatible. TMAs might organise frequent plantation drives and interact with youngsters. The public will be made aware of the value of green spaces in their cities and will also feel included.
Singapore, commonly referred to as “Garden City,” is a significant case study in this respect. In the city-state, it’s usual to see green roofs and vertical gardens, which are climbers covering building walls. Singapore also continues to experiment with novel approaches to lower emissions and enhance air quality.
GWS Living Arts introduced the “Garden on the Move” initiative, which involves fitting green roofs onto 10 public buses. The project sought to determine whether adding more vegetation could help keep buses cooler. Another example is the well-known Green Mark Scheme, which requires Singapore’s buildings to be 80 percent green by 2030.
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