Water is essential to life as we know it. Too much or too little water can mean the difference between life and death. While we live on a "water planet" and almost three-quarters of our planet is covered with water, less than 2.5% of that water is actually freshwater. You can read more about Earth's freshwater resources in this article, "Precious Freshness", and watch the video "Show Me the Water". See the "Freshwater Availability Toolkit" here for even more great resources.
NASA's "Global Precipitation Measurement" (GPM) mission is measuring how much precipitation is falling from...
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Curriculum:
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