What is the hydrosphere and why is it important?

The My NASA Data visualization tool, Earth System Data Explorer (ESDE), helps learners visualize complex Earth System data sets over space and time. Visit this page to review the datasets we have available to you and their organization by Earth System sphere, science variable, dataset name, and start/end dates. 

In addition to the changes brought about by natural forces, it has recently become apparent that a relative newcomer to planet Earth — the human being — has become a powerful agent of environmental change.

Background information on soil moisture.

Earth is a system of systems.

Background information on deforestation.

What is the atmosphere and why is it important?

Background on changing albedo values.

MND recognizes that teaching science is about helping students make sense of the world around them, not memorizing facts and principles. MND makes teaching Earth Science easier (and more interesting) by organizing NASA data with the phenomena that they support.

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.