How Do We Know Earth Is Changing?

Scientists can use new and old pictures to keep track of Earth’s changes over time. Since Earth is where we live - and it’s the only planet we know of that we can live on - scientists are constantly observing its land, water, and air.
By capturing images from the ground and images from satellites in the sky, we can see how our planet is different than it used to be.
Find more images of our changing planet at
climate.nasa.gov/images-of-ch...
Find more fun videos, games, and articles about our planet at
climatekids.nasa.gov/