ScienceDaily: Top Science News |
| Climate change may bring big ecosystem shifts, NASA says Posted: 18 Dec 2011 07:13 PM PST By 2100, global climate change will modify plant communities covering almost half of Earth's land surface and will drive the conversion of nearly 40 percent of land-based ecosystems from one major ecological community type -- such as forest, grassland or tundra -- toward another, according to a new NASA and university computer modeling study.  |
| Novel device removes heavy metals from water Posted: 16 Dec 2011 12:03 PM PST Engineers have developed a system that cleanly and efficiently removes trace heavy metals from water. In experiments, the researchers showed the system reduced cadmium, copper, and nickel concentrations, returning contaminated water to near or below federally acceptable standards. The technique is scalable and has viable commercial applications, especially in the environmental remediation and metal recovery fields.  |
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