A quadra de basquete que virou esponja: 1,2 milhão de litros de enchente

Heavy rain is a big problem in big cities. The streets are hard, so the water does not go down. It runs fast and it enters people's houses.

In New York, a team has a simple idea. They build a basketball court one metre below the street. On a normal day, kids play there. When the storm comes, the water runs into the court. The court holds 330,000 gallons of water. That is half of an Olympic swimming pool.

Then the water goes slowly into the ground. The next day, it is a basketball court again. The edge of the court works as seats for the game. The idea comes from Copenhagen and Rotterdam. Now other parts of the city want one too.