This picture shows the troposphere. The troposphere is a layer
of Earth's atmosphere. It starts at the ground and goes up to 10
km (6 miles) high. We live in the troposphere. Weather happens
in this layer. Most clouds are found in the troposphere. The
higher you go in the troposphere, the colder it gets. The next
layer up is the stratosphere. Original artwork by Windows to the
Universe staff (Randy Russell).