Urban Heat Island (UHI) effect happens when cities become much hotter than nearby rural areas because of concrete roads, buildings, and less greenery. Heat from vehicles, industries, and air conditioners gets trapped, making cities warmer day and night. This can cause dehydration, heat stroke, and breathing problems, especially in children, elderly, and those with heart or lung diseases. Hotter temperatures also increase electricity use, adding to pollution. Planting more trees, using green roofs, and reducing concrete spaces can help keep cities cooler. Understanding UHIs is important for public health so that communities can stay safe during extreme heat.
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Great topic, Cities often run warmer than their rural surroundings by as much as 4°C or more because concrete and asphalt absorb and retain heat, while greenery reduces it through cooling. This extra heat worsens heart and lung problems, mental stress, and even raises risks of heat-related illness especially for those without air conditioning or tree cover.
In Tokyo, Japan, Urban Heat Island effect has raised city-center temperatures by 2–3°C compared to rural areas. This elevates summer heatwaves, increases electricity consumption for cooling, and increases risks of heatstroke, especially among elderly city residents.
Focusing on nature, planting more trees instead of cutting for infrastructure should be motto of government both should be equal for wealthfare.
We frequently notice how much hotter it becomes in cities, especially during the summer, therefore this is a really essential issue. It isn’t just about comfort; it’s also about health and safety. Small steps like putting in rooftop gardens, planting trees, or even selecting greener building materials can have a big impact. At the end of the day, constructing cooler cities means providing better environments for everyone to live in.