ScienceDaily: Top Environment News |
- Scientists uncover diversion of Gulf Stream path in late 2011; Warmer waters flowed to shelfbreak south of New England
- Documented decrease in frequency of Hawaii's northeast trade winds
- Fly genomes show natural selection and return to Africa
- Scientists identify trigger for explosive volcanic eruptions
- Reason discovered for the toxicity of indoor mould
- Techniques used to infer pathways of protein evolution found unreliable
| Posted: 12 Oct 2012 09:26 AM PDT The Gulf Stream made an unusual move well north of its normal path in late October and early November 2011, causing warmer-than-usual ocean temperatures along the New England continental shelf, according to physical oceanographers. |
| Documented decrease in frequency of Hawaii's northeast trade winds Posted: 12 Oct 2012 07:26 AM PDT Scientists have observed a decrease in the frequency of northeast trade winds and an increase in eastern trade winds over the past nearly four decades, according to a recent study. |
| Fly genomes show natural selection and return to Africa Posted: 12 Oct 2012 07:26 AM PDT New studies of the genomes of almost 200 strains of Drosophila flies show natural selection and a "return to Africa" of the tiny flies, which likely migrated with ancestral humans tens of thousands of years ago. |
| Scientists identify trigger for explosive volcanic eruptions Posted: 12 Oct 2012 04:47 AM PDT Scientists have identified a repeating trigger for the largest explosive volcanic eruptions on Earth. The Las Cañadas volcanic caldera on Tenerife, in the Canary Islands, has generated at least eight major eruptions during the last 700,000 years. These catastrophic events have resulted in eruption columns of over 25km high and expelled widespread pyroclastic material over 130km. By comparison, even the smallest of these eruptions expelled over 25 times more material than the 2010 eruption of Eyjafjallajökull, Iceland. |
| Reason discovered for the toxicity of indoor mould Posted: 12 Oct 2012 04:46 AM PDT A team of researchers from Finland has discovered how indoor mold makes people sick. The only remedy is to heal the living environment, they say. |
| Techniques used to infer pathways of protein evolution found unreliable Posted: 11 Oct 2012 06:06 AM PDT Biologists have published thousands of papers that used statistical techniques to infer the likely evolutionary paths that led to the present-day forms of proteins. But careful experimental studies of the properties of reconstructed ancestral forms of visual pigments and variants created by mutation suggest that core simplifying assumptions used in the statistical approaches are unreliable and make the approaches unable to identify the actual paths. |
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