Environment & Geology

Magazine articles on environmental science and geology.

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Geotimes January 2004 C. Wylie Poag	Coring the Chesapeake Bay Impact Crater An extraterrestrial impact 36 million years ago left a lasting impression in the Chesapeake Bay and continues to affect the region's environment today.
Smithsonian February 2004 Deborah Franklin	Gas Guzzlers New research shows how microscopic diatoms remove carbon dioxide from the atmosphere and may help keep the planet from overheating
Geotimes January 2004 Megan Sever	America's garden island Kauai is a remarkable place to learn about geology.
IDB America December 2003 Roger Hamilton	The biowealth of nations An eminent scientist argues that the information contained in biodiversity is one of a country's greatest assets.
Science News January 17, 2004 Ivars Peterson	Extreme Tides If Earth had been somewhat larger, it's possible that it would not have survived tides induced by its moon or even by an encounter with a passing asteroid. That's one scenario suggested by a recent investigation of a venerable equation that serves as a model for planetary tidal effects.
Geotimes January 2004 Naomi Lubick	Saltier sea Oceanographers have documented the growing saltiness of the Atlantic in the tropics, in opposition to freshening of the polar oceans. The changes in the sea-surface salinity indicate changes in the hydrologic cycle, the researchers say, which may be attributable to human-induced climate changes.
Geotimes January 2004 John E. Warme	The Many Faces of the Alamo Impact Breccia The Alamo impact 370 million years ago resulted in one of the best-exposed and well-dated impact deposits and a full-scale physical model for understanding wet impacts: the Alamo Breccia.
Geotimes January 2004 Megan Sever	Charcoal clues in dinosaur debate While new research is intriguing, say some geochemists, it is premature to throw out the whole global fire hypothesis that has been developed to explain evidence at the Cretaceous-Tertiary boundary.
Outside January 2004 Michael Roberts	Permamush Will Steger launches a new Arctic dogsled expedition to put global warming on the world's front burner.
Geotimes January 2004 Megan Sever	Unraveling the Chicxulub Case On the Yucatan Peninsula in Mexico, geologists are drilling one of Earth's three largest impact structures, hoping to reveal clues about a devastating event linked to the extinction of the dinosaurs 65 million years ago.
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