| Old Articles: <Older 841-850 Newer> |
|---|
 |
Scientific American
September 2006
Jeffrey D. Sachs |
Lower Fertility: a Wise Investment The continued rapid population growth in many poor countries will markedly exacerbate the environmental stresses. Plans that encourage voluntary, steep reductions in the fertility rates of poor nations pay dividends in sustainability for everyone.   |
Geotimes
August 2006
Megan Sever |
Ecuadorian Volcano Erupts, Kills 5 Tungurahua, one of Ecuador's "big three" volcanoes, once again ramped up its eruption, triggering emergency evacuations. At least five people were killed, many have been injured, and at least another 60 people are missing from villages that were destroyed by the eruption. |
Chemistry World
August 16, 2006
Katharine Sanderson |
Plants' Methane Emissions Revised The news that trees and other plants can give off large quantities of methane took biologists and atmospheric chemists by surprise. Scientists have now fine-tuned their calculations and set an upper limit on plants' total methane emissions that almost halves their original suggestion. |
Geotimes
August 2006 |
Summer Roadtrip: Ferrying Through the Inside Passage In case you think "boat" and "roadtrip" don't mix, you should learn about the Alaska Marine Highway. Glaciers are one of the first things to notice along your trek southward along Alaska's Inside Passage. |
Science News
August 12, 2006 |
Science Safari: Earthquake Hazards To keep up with the latest rumblings around the globe, the U.S. Geological Service offers a Web site with current earthquake data. |
Chemistry World
August 7, 2006
Ned Stafford |
Sea Sediment Storage Proposed for Carbon Dioxide It may be possible to fight global warming by burying carbon dioxide in reservoirs hundreds of meters below the ocean floor. |
Chemistry World
August 2006
Andrew Scott |
Down on the Plastics Farm Soaring oil prices could see biomass become competitive as a source for chemicals traditionally derived from petroleum. |
Geotimes
August 2006
Kathryn Hansen |
Unlocking Jade's Secrets Although recent expeditions to Guatemala turned up jade's geologic source -- deep inside a fault -- only now have scientists begun to unlock the clues inside the stone that provide a rare look at conditions deep inside Earth. |
Geotimes
August 2006
Carolyn Gramling |
Early Life Lines Make Waves Life on Earth just got a little older. New evidence from an ancient rock formation in Australia is bolstering one side of a long-standing debate: that the earliest life on Earth helped shape thousands of finely-layered sediment mounds within the rock. |
Geotimes
August 2006
Megan Sever |
Faster Tsunami Warnings with GPS Time is of the essence when a giant earthquake strikes, especially underwater. Now, a team of researchers says that they have found a new way -- using GPS -- to more quickly determine if the quake is large enough to produce an ocean-wide tsunami. |
| <Older 841-850 Newer> Return to current articles. |
