NASA Watches Mexico City Sink
Mexico City is sinking. New space pictures show this clearly. Some places drop by more than two centimetres a month. A space satellite called NISAR took the pictures. NASA (the US space team) and India built it together.
The city was built on an old lake. The ground is soft. People pump out water from below. So the ground sinks more.
Many old buildings lean now. Pipes break under the streets. The city loses much of its water. Stopping this is hard. People need water every day.
