Why It’s Usually Hotter In A City | Let's Talk | NPR?

It’s usually hotter in a city because buildings and roads keep heat around like a blanket.

Imagine you're playing outside on a sunny day. You run around, and the ground gets warm under your feet. Now imagine that whole playground is made of black asphalt, and instead of grass, there are big buildings that don’t let the heat go anywhere. That’s what happens in a city, asphalt and concrete absorb the sun's warmth during the day and then slowly give it back at night, making the air feel warmer than it would in the countryside.

In the country, there are more trees and grass, which act like little fans. They help cool things down by letting some of the heat escape. But in a city, buildings block the wind and the sun, trapping the heat inside like a cozy blanket on a cold night.

Also, cities have lots of cars and factories, which make extra heat, it’s like having a bunch of little heaters all over the place!

So next time you feel like it's hotter in the city than out in the country, remember: it's not magic. It's just buildings, roads, and cars working together to keep the heat around.