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U.S. Cites Emergency in Asbestos-Poisoned Town
By CORNELIA DEAN, The New York Times, June 18, 2009
The Environmental Protection Agency declared a public health emergency on Wednesday in and near Libby, Mont., where over the course of decades asbestos contamination in a vermiculite mine has left hundreds of people dead or sickened from lung diseases.
It was the first health emergency ever declared under the Superfund law, the 1980 statute that governs sites contaminated or threatened by hazardous substances. The Libby site has been designated a Superfund priority since 2002.
( Read More )
Report on Gene for Depression Is Now Faulted
By BENEDICT CAREY, The New York Times, June 17, 2009
One of the most celebrated findings in modern psychiatry — that a single gene helps determine one’s risk of depression in response to a divorce, a lost job or another serious reversal — has not held up to scientific scrutiny, researchers reported Tuesday.
The original finding, published in 2003, created a sensation among scientists and the public because it offered the first specific, plausible explanation of why some people bounce back after a stressful life event while others plunge into lasting despair.
The new report, by several of the most prominent researchers in the field, does not imply that interactions between genes and life experience are trivial; they are almost certainly fundamental, experts agree.
But it does suggest that nailing down those factors in a precise way is far more difficult than scientists believed even a few years ago, and that the original finding could have been due to chance. The new report is likely to inflame a debate over the direction of the field itself, which has found that the genetics of illnesses like schizophrenia and bipolar disorder remain elusive.
( Read More )
In one view of the beginnings of life, depicted in an animation, carbon monoxide molecules condense on hot mineral surfaces underground to form fatty acids, above, which are then expelled from geysers.
New Glimpses of Life’s Puzzling Origins
By NICHOLAS WADE, The New York Times, June 16, 2009
Some 3.9 billion years ago, a shift in the orbit of the Sun’s outer planets sent a surge of large comets and asteroids careening into the inner solar system. Their violent impacts gouged out the large craters still visible on the Moon’s face, heated Earth’s surface into molten rock and boiled off its oceans into an incandescent mist.
Yet rocks that formed on Earth 3.8 billion years ago, almost as soon as the bombardment had stopped, contain possible evidence of biological processes. If life can arise from inorganic matter so quickly and easily, why is it not abundant in the solar system and beyond? If biology is an inherent property of matter, why have chemists so far been unable to reconstruct life, or anything close to it, in the laboratory?
The origins of life on Earth bristle with puzzle and paradox. Which came first, the proteins of living cells or the genetic information that makes them? How could the metabolism of living things get started without an enclosing membrane to keep all the necessary chemicals together? But if life started inside a cell membrane, how did the necessary nutrients get in?
The questions may seem moot, since life did start somehow. But for the small group of researchers who insist on learning exactly how it started, frustration has abounded. Many once-promising leads have led only to years of wasted effort. Scientists as eminent as Francis Crick, the chief theorist of molecular biology, have quietly suggested that life may have formed elsewhere before seeding the planet, so hard does it seem to find a plausible explanation for its emergence on Earth.
In the last few years, however, four surprising advances have renewed confidence that a terrestrial explanation for life’s origins will eventually emerge.
( Read More )
A Conversation With Bert Hölldobler: Insects Succeeding Through Cooperation
By CLAUDIA DREIFUS, The New York Times, June 16, 2009
At 72, Bert Hölldobler, a professor of life sciences at Arizona State University and a professor emeritus at the University of Würzburg in Germany, is one of the world’s great ant experts. Along with his collaborator, E. O. Wilson, Dr. Hölldobler won a Pulitzer Prize in 1991 for “The Ants.” The two wrote a second book in 2008, “The Superorganism: The Beauty, Elegance and Strangeness of Insect Societies.”
( Read More )
By CORNELIA DEAN, The New York Times, June 18, 2009
The Environmental Protection Agency declared a public health emergency on Wednesday in and near Libby, Mont., where over the course of decades asbestos contamination in a vermiculite mine has left hundreds of people dead or sickened from lung diseases.
It was the first health emergency ever declared under the Superfund law, the 1980 statute that governs sites contaminated or threatened by hazardous substances. The Libby site has been designated a Superfund priority since 2002.
( Read More )
Report on Gene for Depression Is Now Faulted
By BENEDICT CAREY, The New York Times, June 17, 2009
One of the most celebrated findings in modern psychiatry — that a single gene helps determine one’s risk of depression in response to a divorce, a lost job or another serious reversal — has not held up to scientific scrutiny, researchers reported Tuesday.
The original finding, published in 2003, created a sensation among scientists and the public because it offered the first specific, plausible explanation of why some people bounce back after a stressful life event while others plunge into lasting despair.
The new report, by several of the most prominent researchers in the field, does not imply that interactions between genes and life experience are trivial; they are almost certainly fundamental, experts agree.
But it does suggest that nailing down those factors in a precise way is far more difficult than scientists believed even a few years ago, and that the original finding could have been due to chance. The new report is likely to inflame a debate over the direction of the field itself, which has found that the genetics of illnesses like schizophrenia and bipolar disorder remain elusive.
( Read More )
In one view of the beginnings of life, depicted in an animation, carbon monoxide molecules condense on hot mineral surfaces underground to form fatty acids, above, which are then expelled from geysers.
New Glimpses of Life’s Puzzling Origins
By NICHOLAS WADE, The New York Times, June 16, 2009
Some 3.9 billion years ago, a shift in the orbit of the Sun’s outer planets sent a surge of large comets and asteroids careening into the inner solar system. Their violent impacts gouged out the large craters still visible on the Moon’s face, heated Earth’s surface into molten rock and boiled off its oceans into an incandescent mist.
Yet rocks that formed on Earth 3.8 billion years ago, almost as soon as the bombardment had stopped, contain possible evidence of biological processes. If life can arise from inorganic matter so quickly and easily, why is it not abundant in the solar system and beyond? If biology is an inherent property of matter, why have chemists so far been unable to reconstruct life, or anything close to it, in the laboratory?
The origins of life on Earth bristle with puzzle and paradox. Which came first, the proteins of living cells or the genetic information that makes them? How could the metabolism of living things get started without an enclosing membrane to keep all the necessary chemicals together? But if life started inside a cell membrane, how did the necessary nutrients get in?
The questions may seem moot, since life did start somehow. But for the small group of researchers who insist on learning exactly how it started, frustration has abounded. Many once-promising leads have led only to years of wasted effort. Scientists as eminent as Francis Crick, the chief theorist of molecular biology, have quietly suggested that life may have formed elsewhere before seeding the planet, so hard does it seem to find a plausible explanation for its emergence on Earth.
In the last few years, however, four surprising advances have renewed confidence that a terrestrial explanation for life’s origins will eventually emerge.
( Read More )
A Conversation With Bert Hölldobler: Insects Succeeding Through Cooperation
By CLAUDIA DREIFUS, The New York Times, June 16, 2009
At 72, Bert Hölldobler, a professor of life sciences at Arizona State University and a professor emeritus at the University of Würzburg in Germany, is one of the world’s great ant experts. Along with his collaborator, E. O. Wilson, Dr. Hölldobler won a Pulitzer Prize in 1991 for “The Ants.” The two wrote a second book in 2008, “The Superorganism: The Beauty, Elegance and Strangeness of Insect Societies.”
( Read More )
