Uncategorized
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Letters
A climate tipping point In Janet Raloff’s article “Forest invades tundra” (SN: 7/5/08, p. 26), there seems to be a paradox. Raloff says that the albedo from normal snow coverage of the tundra “helps maintain the region’s chilly temperatures,” implying that the coverage also preserves the mats of plant matter. A little later in the […]
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Corporate campaigns manufacture scientific doubt by David Michaels
From the September 27, 2008 issue of Science News.
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- Neuroscience
Breaking the Barrier
A technique combining ultrasound pulses with microbubbles may help scientists move therapeutic drugs across the brain’s protective divide.
