ScienceDaily: Top Environment News

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• Rising temperatures challenge Salt Lake City's water supply
• Norwegian Vikings purchased silk from Persia
• Automatic location of fishing gear
• New methods improve quagga and zebra mussel identification
• Cellular tail length tells human disease tale
• Residents weigh global benefits, local risks in views of climate change measures

Rising temperatures challenge Salt Lake City's water supply Posted: 01 Nov 2013 08:24 AM PDT In an example of the challenges water-strapped Western cities will face in a warming world, new research shows that every degree Fahrenheit of warming in the Salt Lake City region could mean a 1.8 to 6.5 percent drop in the annual flow of streams that provide water to the city.

Norwegian Vikings purchased silk from Persia Posted: 01 Nov 2013 06:17 AM PDT The Norwegian Vikings were more oriented towards the East than we have previously assumed, according to new research. After four years of in-depth investigation of the silk trade of the Viking Age, archeologists may change our perceptions of the history of the Norwegian Vikings. The silk trade was far more comprehensive than was previously assumed.

Automatic location of fishing gear Posted: 01 Nov 2013 06:17 AM PDT In the grey light of morning and squally weather a fishing boat stops its engine. The fisherman knows he is outside the baseline and has to notify the Coastguard before setting his nets. He phones the office in Sortland and states his GPS coordinates in order to avoid collision with other boats' fishing gear.

New methods improve quagga and zebra mussel identification Posted: 31 Oct 2013 02:56 PM PDT The earliest possible detection of quagga and zebra mussels has long been a goal of biologists seeking to discover their presence in water bodies. A new sampling method improves the accuracy of quagga and zebra mussel detection while still at the microscopic larval stage.

Cellular tail length tells human disease tale Posted: 31 Oct 2013 09:49 AM PDT A molecular biologist's adventures in pond scum have led her and four student researchers to discover a mutation that can make cilia, the microscopic antennae on our cells, grow too long. When the antennae aren't the right size, the signals captured by them get misinterpreted. The result can be fatal. They have discovered that the regulatory gene CNK2 is present in cilia and controls the length of these hair-like projections.

Residents weigh global benefits, local risks in views of climate change measures Posted: 31 Oct 2013 09:46 AM PDT A survey of Indiana residents tracks public acceptance of potential measures to address climate change in their communities.

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