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Chemistry World
March 11, 2014
Tim Wogan |
Dinosaur mass extinction may have been triggered by acid rain Most scientists accept the principal cause of the Cretaceous -- Tertiary mass extinction was a 10km asteroid hitting the Yucatan peninsula, but the precise mechanism by which this caused the extinction remains controversial.   |
Chemistry World
December 2, 2013
Ian Randall |
Mass extinction the result of acid rain and ozone loss Widespread rain as acidic as lemon juice and the destruction of as much as 65% of the ozone layer may have played a major role in the largest mass extinction in the fossil record. |
Geotimes
November 2007
Carolyn Gramling |
Acid Rain Alters Coastal Waters Excess carbon dioxide, sulfur and nitrogen from fossil fuel burning, agricultural runoff and other human sources are changing ocean chemistry -- and that impact is especially pronounced along the coasts, new research suggests. |
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. |
Chemistry World
November 24, 2014
Matthew Gunther |
Crustacean culprit turns lakes to jelly Holopedium are taking over Canadian lakes as acid rain is leading to a decline in other species of plankton |
Geotimes
January 2005
Sara Pratt |
Acid Rain Curbs Global Warming In an odd twist that highlights the complex nature of interactions between Earth's systems, researchers have found that acid rain is significantly suppressing the global emission of methane from wetlands. |
Geotimes
October 2006
Kathryn Hansen |
Debate Continues Over Dinosaur Demise Analysis of new core samples support previous research from that the Chicxulub meteor struck about 300,000 years prior to the K/T extinction event and, therefore, did not cause extinction of the dinosaurs. |
Geotimes
October 2003
Naomi Lubick |
Vertebrates and tectonics Paleontologists suggested some new twists on tectonics and ecosystems at the annual meeting of the Society of Vertebrate Paleontology. Their ideas might offer answers to some key conundrums regarding extinction, speciation and the global distribution of vertebrate species. |
Scientific American
May 16, 2005
Barry E. DiGregorio |
Doubts on Dinosaurs Yucatan impact crater may have occurred before the dinosaurs went extinct. |
Geotimes
March 2004
Megan Sever |
Extinction debate continues Did the Chicxulub impact off the Yucatan coast in Mexico kill the dinosaurs 65 million years ago? |
Geotimes
July 2003
Joyce A. Ober |
Mineral Resource of the Month: Sulfur Information on sulfur, global production of which minimizes the environmental effects of oil and natural gas production. |
Chemistry World
November 12, 2009
Simon Hadlington |
Carbonic acid captured Scientists from Germany and Israel have caught a fleeting glimpse of carbonic acid, the simple yet elusive molecule that plays a key role in nature. |
