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Health & MedicineSalmonella seeks sweets
A sugarlike substance in the roots of lettuce may attract food-poisoning bacteria.
By Janet Raloff -
EarthGroundwater use adds CO2 to the air
Pumping out groundwater for crop irrigation or industrial purposes releases planet-warming carbon dioxide into the atmosphere.
By Sid Perkins -
19899
Soil water picks up carbon dioxide generated when soil organic matter decomposes, and this then escapes to the atmosphere. This study should give pause to those who insist that man-made materials be biodegradable. When biodegradable materials decompose they add CO2 back into the atmosphere more quickly than otherwise. Nonbiodegradable materials serve to keep organic carbon […]
By Science News -
Health & MedicineEarache microbe shows resistance
A strain of bacterium that causes middle ear infection is resistant to all antibiotics currently approved for the ailment.