Quarky Explores Seoul
Can a river cool down a whole city?
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Quarky is writing this for you...
The story
Seoul uncovered a river that had been buried under a highway, and the neighbourhood got cooler. Water carries heat away as it evaporates, and breezes follow the open channel, so the city gained a natural air conditioner made of water and shade.
What you'll learn
- Evaporation takes heat away, which cools the air nearby.
- Concrete and cars store and release heat, making cities hotter.
- Open water, trees and shade lower a city's temperature.
- Quarky takeaway: undoing an old mistake can be its own kind of invention.
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