Asian Carp: Threat to Great Lakes

11/02/11 • 10 min

The invasive Asian carp has wreaked havoc in the Mississippi River system. The voracious plankton eaters have out-competed native fish and have become the dominant species in many locations. If the carp reach the Great Lakes, they pose a threat to its $7 billion fishery, so a battle against them is taking place on many fronts.

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Science on the SPOT: The Science of Salt Glaze Pottery

The art and science of salt glaze pottery requires skills and techniques acquired over generations of trial and error. Ben Owen III combines his family’s experiential knowledge of ceramics and additional scientific knowledge to create and improve his unique works of art.

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Hetch Hetchy Aqueduct: Big Fixes for Big Quakes

The San Francisco Public Utilities Commission is hard at work on a $4.6 billion, decade-long construction project to overhaul the Hetch Hetchy water system, which delivers water from the Hetch Hetchy reservoir in Yosemite National Park and five local reservoirs to 2.5 million residents in the Bay Area.