ScienceDaily: Top Environment News |
- Drop in carbon dioxide levels led to polar ice sheet, study finds
- Sharp decline in pollution from U.S. coal power plants, NASA satellite confirms
- Rise of atmospheric oxygen more complicated than previously thought
- New insights into responses of Yellowstone wolves to environmental changes
- Archaeologists find new evidence of animals being introduced to prehistoric Caribbean
- Aggression prevents the better part of valor ... in fig wasps
- World's first captive breeding of Ozark hellbenders
| Drop in carbon dioxide levels led to polar ice sheet, study finds Posted: 01 Dec 2011 02:42 PM PST A drop in carbon dioxide appears to be the driving force that led to the Antarctic ice sheet's formation, according to a recent study of molecules from ancient algae found in deep-sea core samples.  |
| Sharp decline in pollution from U.S. coal power plants, NASA satellite confirms Posted: 01 Dec 2011 01:36 PM PST A team of scientists have used the Ozone Monitoring Instrument on NASA's Aura satellite to confirm major reductions in the levels of a key air pollutant generated by coal power plants in the eastern United States. The pollutant, sulfur dioxide, contributes to the formation of acid rain and can cause serious health problems.  |
| Rise of atmospheric oxygen more complicated than previously thought Posted: 01 Dec 2011 11:27 AM PST The appearance of oxygen in the Earth's atmosphere probably did not occur as a single event, but as a long series of starts and stops, according to an international team of researchers who investigated rock cores from the FAR DEEP project.  |
| New insights into responses of Yellowstone wolves to environmental changes Posted: 01 Dec 2011 11:27 AM PST A study of the wolves of Yellowstone National Park has improved predictions of how these animals will respond to environmental changes. The study, which is part of the Yellowstone Wolf Project, involved tracking changes in various characteristics of the wolves of Yellowstone National Park ever since these animals were reintroduced to the park in 1995.  |
| Archaeologists find new evidence of animals being introduced to prehistoric Caribbean Posted: 01 Dec 2011 07:54 AM PST An archaeological research team has found one of the most diverse collections of prehistoric non-native animal remains in the Caribbean, on the tiny island of Carriacou. The find contributes to our understanding of culture in the region before the arrival of Columbus, and suggests Carriacou may have been more important than previously thought.  |
| Aggression prevents the better part of valor ... in fig wasps Posted: 01 Dec 2011 07:53 AM PST Researchers have confirmed a unique behavior within the male population of tiny fig wasps that pollinate fig trees -- they team up to help pregnant females, regardless of whether they have mated themselves.  |
| World's first captive breeding of Ozark hellbenders Posted: 01 Dec 2011 06:47 AM PST After a decade-long effort, conservation experts report that Ozark hellbenders have been bred in captivity -- a first! Endangered in the wild, this amphibian has fossil records dating back 15 million years. Today its numbers are rapidly declining.  |
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