AMERICAN GEOPHYSICAL UNION MEETING:
New Data Hint at Why Earth Hums and Mountains Rise
Richard A. Kerr
SAN FRANCISCO--Topics ranging from the atmosphere to the inner Earth were served up at the annual fall meeting of the American Geophysical Union here last month. Below, we report two surprising new ideas on how the solid Earth interacts with the atmosphere and with the water on its surface: why Earth hums and how a river may be able to raise a mountain.