Search Results for: ocean

A shrinking sink? Carbon fertilization may be flimsy weapon against warming

A growing body of evidence questions calculations by the Intergovernmental Panel on Climate Change that the land will automatically provide a significant, long-term carbon “sink” to offset some of the effects of greenhouse gas emissions. Scientists reported these findings today at the 2004 AAAS (Triple-A-S) Annual Meeting.

The latest information about carbon dioxide fertilization – by which plants soak up carbon from the atmosphere – “really paints a different picture of the way the world w

Symposium Examines the Growing Influence of Aerosols on Climate

In a few decades, it’s likely that scientists will look back at the early part of the 21st century and regard it as a fundamental stage in understanding the importance of the effects of aerosols on Earth’s climate. In fact, it was in this time period, they may say, that aerosols were first found to be as climatologically significant as greenhouse gases.

Aerosols, tiny atmospheric particles made up of various elements and produced by a range of sources, have become a prominent conc

Titan is ideal lab for oceanography, meteorology

After a 7-year interplanetary voyage, NASA’s Cassini spacecraft will reach Saturn this July and begin what promises to be one of the most exciting missions in planetary exploration history.

After years of work, scientists have just completed plans for Cassini’s observations of Saturn’s largest moon, Titan.

“Of course, no battle plan survives contact with the enemy,” said Ralph Lorenz, an assistant research scientist at the University of Arizona’s Lunar and Plan

New technologies reveal mysteries of marine megafauna

High tech tools may help find solutions to animal-human conflicts in the sea — Sea turtles, porpoises, albatrosses and tunas could see brighter days ahead

How can scientists follow leatherback sea turtles that dive to crushing depths a half-mile below the surface and swim across 80% of the world’s ocean? Or tunas that race faster than most boats? Or albatrosses that soar halfway across the Pacific without sleep or a meal — unlike their human observers? Science is beginning to m

Measuring Europe’s central heating system

British scientists set sail today from Glasgow to begin work aimed at discovering if Britain is indeed in danger of entering the next ice age.

Scientists on the Royal Research Ship Discovery are on their way to deploy oceanographic instruments across the Atlantic Ocean from the Canary Islands to the Bahamas. The instruments will spend the next four years measuring the temperature, salinity and speed of currents.

The work is part of a research programme called Rapid Climate Change, f

New evidence points to pollution as main cause of much coral reef destruction

Scientists agree that coral reefs are in an alarming global state of decline. However, determining the main cause or causes of this decline has proven a much more contentious issue. In the current edition of the Journal of Experimental Marine Biology and Ecology (JEMBE), Harbor Branch marine scientist Dr.Brian Lapointe and colleagues present new evidence they hope will help settle one major debate: whether pollution or overfishing is the main cause of the coral-smothering spread of seaweed on many re

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