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We pump too much #groundwater out of the ground--and that's killing our #rivers | @NatGeo | #waterresource

A recently published Nature research suggests that 2050 thousands of rivers and streams could pass a critical ecological threshold.

Real World: #Earth #Systems | @NASA_eClips | #K12 #video #realworld #connections

1 min read

Middle school students learn in this 5:02 video that the Earth is a dynamic set of subsystems--the atmoshere, lithosphere, hydrosphere, cryosphere and biosphere. The subsystems interact in complex ways. Two NASA scientists, an atmospheric scientist from NASA Langley Research Center and an Earth scientist from NASA Goddard Space Flight Center, are interviewed. They answer questions and demonstrate how satellites and mathematical modeling help scientists improve their predictions of climate, weather, and natural hazards.