American Geophysical Union

Scientists capture Earth's 'hum' on ocean floor

Scientists have long known earthquakes can cause the Earth to vibrate for extended periods of time. However, in 1998 a research team found the Earth also constantly generates a low-frequency vibrational signal in the absence ...

dateDec 07, 2017 in Earth Sciences
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Farms a major source of air pollution, study finds

Emissions from farms outweigh all other human sources of fine-particulate air pollution in much of the United States, Europe, Russia and China, according to new research. The culprit: fumes from nitrogen-rich fertilizers ...

dateMay 16, 2016 in Environment
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