Tag Archives: Tim Stephens

Lead pollution tenaciously hanging on — and the implications of that 0

© 2013 Peter Free Citation — to press release Tim Stephens, Historic legacy of lead pollution persists despite regulatory efforts, University of California – Santa Cruz (16 February 2013) Toxicology professor Russell Flegal’s report at the American Association for the Advancement of Science Annual Meeting in Boston From the University of California at Santa Cruz: [...]

Mercury in California coastal fog — an interesting mystery 0

Citation — to press release Tim Stephens, Mercury in coastal fog linked to upwelling of deep ocean water, University of California – Santa Cruz (04 December 2012) Not especially important for its own sake, but chemically interesting Peter Weiss-Penzias and students have found allegedly harmless levels of mercury in California coastal fog. They suspected that [...]

Moon’s core may once have been the electromagnetic dynamo that magnetized the moon’s surface rocks — a hypothesis about the Earth’s long-ago precession-inducing gravitational effect 0

From Nature The moon lacks a magnetic field.  So, people have tried to explain the presence of magnetized rocks on its surface. A letter in Nature suggests a hypothesis.  When the moon was much closer to the Earth, the latter’s gravity caused precession (wobbling) in the moon’s rotational axis. Gravity’s differential effects on the moon’s [...]

The 10-year “Tagging of Pacific Predators” study concluded with important evidence for two life-rich zones in the Pacific Ocean — Notice that this study would not have been possible without grants from charitable foundations 0

An environmentally important study funded by charitable foundations Barbara Block and colleagues recently published an important paper in Nature: Tagging of Pacific Predators, a field programme of the Census of Marine Life, deployed 4,306 tags on 23 species in the North Pacific Ocean, resulting in a tracking data set of unprecedented scale and species diversity [...]