Search Results for: Ocean

Geologist’s Discovery May Unlock Secrets to Start of Life on Earth

Scientist continues to build case for origin of plate tectonics

A Saint Louis University geologist has unearthed further evidence in his mounting case that shifting of the continents — and perhaps life on Earth — began much earlier than many scientists believe.

Tim Kusky, a professor of Earth and atmospheric sciences, has discovered the world’s first large intact pieces of oceanic mantle from the planet’s earliest period, the Archean. The nearly mile-long section of rock,

New Computer Model Promises Detailed Picture of Worldwide Climate

Capping two years of research, a nationwide group of over 100 scientists has created a powerful new computer model of the Earth’s climate. The model surpasses previous efforts by successfully incorporating the impact of such variables as ocean currents and changes in land-surface temperatures.

Researchers will use the model, called CCSM-2 (Community Climate System Model, version 2) to probe how our climate works and to experiment with “what-if” scenarios to predict what our climate may be l

Frozen ’lake’ beneath Antarctica ideal to test sterile drilling techniques

UC Berkeley scientist urges drilling into frozen lake under ice near South Pole as prelude to drilling into subglacial lakes in Antarctica and into Mars polar caps

Measurements of the ice temperature far below the South Pole suggest that a so-called “lake” discovered at the base of the ice is most likely permafrost – a frozen mixture of dirt and ice – because the temperature is too low for liquid water.
Far from being a disappointment, says a University of California, Berkeley p

URI Biological Oceanographers Study Potentially Toxic Microalgae on the Northeast Coast

The scientific community concurs that the occurrence of harmful algal blooms (HABs) is increasing worldwide. The annual loss from HABs worldwide is probably more than $1 billion, including both mortality and unmarketable products. The annual human cost has been estimated at 2,000 cases of poisoning with 15% mortality. Because there is no international record of economic loss and human intoxication incidents by HABs, these numbers are almost certainly underestimates.

In a recent issue of Nort

Origins of Life

Were the first macromolecules created on a primitive beach?

In order for life to emerge both peptides and nucleic acids must have appeared under “prebiotic” conditions. Despite numerous efforts, the formation of these macromolecules without the help of modern synthetic reagents has not been achieved in a laboratory. Now for the first time researchers have proposed a mechanism by which the formation of peptides could have occurred under prebiotic conditions. Reporting their findings in

Cranberry may offer protection against antibiotic-resistant bacteria that cause UTIs

Fewer Infections may mean less antibiotic therapy

Public health officials concerned about the rising problem of antibiotic resistance ¾ the immunity that bacteria develop to common prescriptions ¾ may have an ally in a common household beverage. Findings published in a research letter to the editor in the June 19, 2002 issue of The Journal of the American Medical Association (JAMA) indicate scientists have discovered that regular consumption of cranberry juice cocktail may offer prote

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