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NRC report concludes hydraulic fracturing poses low risk for causing earthquakes, but risks are higher for wastewater injection wells; CCS impact undetermined

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Hydraulic fracturing (“fracking”) extracts natural gas by injecting a mixture of water, sand, and chemicals in short bursts at high pressure into deep underground wells. CCS, due to the large net volumes of injected fluids, may have potential for inducing larger seismic events. —“Induced Seismicity Potential in Energy Technologies”.

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Satellite Imagery for Everyone

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These underwater sand dunes adorn the seafloor between Andros Island and the Exuma islands in the Bahamas. So these orbits are primarily used for observation satellites designed to track changing weather conditions over broad areas. Because the satellites are so high up, the resolution of that imagery is quite coarse, however.

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