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Location: Categories / Science & Technology / Environment & Geology

Magazine articles on environmental science and geology.
Old Articles: <Older 681-690 Newer>
Geotimes
November 2005
Megan Sever
The Increasing Costs of U.S. Natural Disasters Population trends, mitigation efforts and federal disaster relief policies all contribute to encouraging high-risk land use and ultimately to making our society more vulnerable to the costs of natural disasters. mark for My Articles 393 similar articles
Geotimes
November 2005
Naomi Lubick
Louisiana's Marshland Mess Even before the past season's devastating hurricanes, Louisiana's wetlands were in rough shape. More than a century of building dams, levees and canals to control the Mississippi River changed the wetlands, limiting sediment and leading to soil compaction from the loss of vegetation. mark for My Articles 171 similar articles
Geotimes
November 2005
Sara Pratt
Super-Rotation for Earth's Core A new earthquake study supports the 1996 finding that Earth's inner core is spinning faster than the planet's mantle and crust -- at a rate detectable on human timescales, but about one-third of the rate first suggested. mark for My Articles 83 similar articles
Geotimes
November 2005
Naomi Lubick
Shift in Chile's Seismic History New research documenting tsunami deposits in the Nazca plate region is resetting the seismic clock. mark for My Articles 182 similar articles
Geotimes
November 2005
Sara Pratt
Middens Mark Southwest Cold Snap A study of ancient rodent trash piles in Grand Canyon caves has confirmed that the American Southwest experienced the climatic period known as the Younger Dryas -- a cold snap lasting from 12,900 to 11,600 years ago. mark for My Articles 10 similar articles
Geotimes
November 2005
Megan Sever
New Appalachian Tale New research indicates that conventional thinking about the timing of the building of the Appalachian Mountains may be incorrect. mark for My Articles 18 similar articles
Geotimes
November 2005
Kathryn Hansen
Earthly Origin for Desert Formation The Richat Structure in the Maur Adrar Desert is frequently photographed from space. The formation resembles an impact crater, but researchers now say that the famous feature may be the result of magma fluids dissolving sedimentary rocks about 100 million years ago. mark for My Articles 32 similar articles
Geotimes
November 2005
Kathryn Hansen
Salting a Stagnant Ocean In its Third Assessment Report, the Intergovernmental Panel on Climate Change flagged the potential sudden collapse of the thermohaline circulation in the Atlantic, which warms Europe to its current habitable climate, as a significant source of concern. mark for My Articles 27 similar articles
Geotimes
November 2005
John A. Kelmelis
The Geosciences and Future Foreign Policy The U.S. Geological Survey (USGS) and the U.S. Department of State have paired up in a project to identify emerging earth science findings that are both reliable and have foreign policy implications. mark for My Articles 113 similar articles
Geotimes
November 2005
Steve Quane
A Volcanologist Enters Energy Politics The tragedies in the Gulf Coast exposed to the world an issue that has been of concern for years -- the lack of a comprehensive plan to reduce U.S. dependence on nonrenewable resources, including oil. mark for My Articles 60 similar articles
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