The world's surface air temperature is getting warmer. Whether the cause is human activity or natural changes in the Earth System—and the enormous body of evidence says it’s humans—thermometer readings all around the world have risen steadily since the beginning of the Industrial Revolution.
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Air quality is a measure of the pollution level in the air. Polluted air can be caused by many things. There are manmade and natural sources of emissions.
Grade Level: 3-5,
6-8
Our Earth is a dynamic system with diverse subsystems that interact in complex ways. Questions that scientists have about the Earth as a System may include the following. As you learn more about the Earth System, reflect on these questions.
The Earth can be considered a system of interrelated parts. Learn about Earth Systems Science and the spheres that make up the Earth System. Find out why NASA studies the Earth system.
Image Credit: NASA
Meet the Stakeholder Advisory Group
- Kevin Czajkowski: GLOBE Mission Earth PI, University of Toledo, Department of Geography and Planning, Toledo, Ohio
The My NASA Data program has served the science community sin