All Stories by Janet Raloff
- Earth
What lies beneath
Studies of geology, soils and agricultural demand may prove useful in forecasting the climate effects of deforestation.
- Ecosystems
No ‘dead zone’ from BP oil
As aquatic microbes dine, they consume oxygen. When too many congregate at some temporary smorgasbord of goodies, they can use up so much oxygen that a so-called dead zone develops — water with too little oxygen to sustain fish, mammals or shellfish. On Sept. 7, federal scientists reported that despite the massive release of oil from the damaged BP well in the Gulf of Mexico, no such dead zone developed.
- Health & Medicine
Gloves may head off ‘garden’ variety pneumonia
Compost feels so good, sifting through a gardener’s fingers. Unfortunately, data are showing, this soil amendment can host a germ responsible for Legionnaire’s disease, a potentially serious form of pneumonia.
- Tech
Tar sands ‘fingerprint’ seen in rivers and snow
A new study refutes a government claim (one echoed by industry) that the gonzo-scale extraction of tar sands in western Canada — and their processing into crude oil — does not substantially pollute the environment.
- Climate
Academies recommend that IPCC make changes
The Intergovernmental Panel on Climate Change, an authoritative scientific organization set up in 1989 to assess climate science, took some heat today from a group that it commissioned to investigate its credibility. The oversight group reported findings procedural weaknesses that preclude IPCC from responding nimbly to events — or from reliably identifying errors in its assessments.
- Health & Medicine
Dairy foods may cut heart attack risk
The reputations of milk, cheese and many other dairy products have taken a bit of a hit in recent years for their constituting a major dietary source of saturated fats — a risk factor for cardiovascular disease. How ironic, then, that a Swedish study now correlates intake of dairy fats with a reduced risk of heart attacks.
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Illegal trophy: Wild cat bagged at airport
On August 22, airport security officials in Bangkok detected something suspicious in an oversize suitcase. X rays indicated that along with stuffed animals, the bag contained bones. Indeed, they belonged to a tranquilized two-month-old tiger. The bag, which had been checked by a 31-year old Thai woman, had been en route to Iran
- Earth
‘Bug traps’ in Gulf to use BP oil as bait
To assay how appetizing polluting oil is to native Gulf micobes — and how rapidly they degrade it — researchers plan to set 150 “bug traps” on August 26.. Their bait: the same oil that had been spewed for months by BP’s damaged Deepwater Horizon well.
- Chemistry
Deep-sea plumes: A rush to judgment?
A new report suggests a deep-sea plume of oil in the Gulf of Mexico has been gobbled up by microbes. But the scientist who described the incident doesn't "know" that. He can't — yet.
- Chemistry
Deep-sea oil plume goes missing
Controversy arises over whether bacteria have completely gobbled oil up.
- Earth
Most BP oil still pollutes the Gulf, scientists conclude
Below the surface, plumes of oil are proving slow to disperse and break down.
- Health & Medicine
Traffic may drive some people to diabetes
Urban air pollution — especially the particles and gases emitted by heavy traffic — can increase a senior citizen’s risk of developing type-2 diabetes, according to a new German study. If confirmed, its authors say, pollution would represent a “novel and potentially modifiable risk factor” for the metabolic disorder.
