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#1 10-04-2018 09:28:25

whetlily
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Date d'inscription: 22-01-2018
Messages: 71

Choosing the Best High Chair for Baby with Online Reviews Waugh Molly

SAN FRANCISCO, Oct. 31 (Xinhua) -- A new study blames high temperatures, not the low precipitation characteristic of past "snow drought" years, for the record low snowpack levels last year in the western-most region of the continental United States.


More than 80 percent of the snow measurement sites in the region, comprised of California, Oregon, Washington, western Nevada and western Idaho, experienced record low snowpack levels that were a result of much warmer-than-average temperatures in 2015, said Philip Mote, lead author of the study published on Monday in the journal Geophysical Research Letters.


While most of the previous records were set in 1977, when there just wasn't enough moisture to generate snow, the study suggests that greenhouse gases were a major contributor to the high temperatures, which doesn't bode well for the future.


California has been in a drought since 2011 and this multi-year period of low precipitation, by some measures, is the state's most severe in 500 years. In 2015, higher temperatures combined with low precipitation, leading to one of its lowest snowpack levels on record.


Oregon and Washington experienced much higher-than-average temperatures during the 2014-15 winter but were not as dry overall as California. Oregon was 6.5 degrees Fahrenheit warmer than average during that period.


While a total of 454 sites in the western United States, or 81 percent of the total sites, recorded record-low snowpack levels that year, the April 1 value for 111 of the sites was zero for the first time ever, essentially indicating that there was no snow left; the overall snowpack level on April 1 in California and Oregon was 90 percent below average.


"The 2015 snowpack season was an extreme year," said Mote, director of the Oregon Climate Change Research Institute at Oregon State University (OSU). "But because of the increasing influence of greenhouse gases, years like this may become commonplace over the next few decades."


Impacts of the snow drought in California, Oregon and Washington led the governors of those states to order reductions in water use and saw many ski areas, particularly those in lower elevations, struggle.


"The story of 2015 was really the exceptional warmth," said Dennis Lettenmaier, professor of geography at the University of California, Los Angeles, and co-author of the study.


"Historically, droughts in the West have mostly been associated with dry winters, and only secondarily with warmth. But 2015 was different. The primary driver of the record low snowpacks was the warm winter, especially in California, but in Oregon and Washington as well."

Factors To Consider When Buying CNC Lathes In Roanoke VA Factors To Consider When Buying CNC Lathes In Roanoke VA October 4 http://www.cheapnflbearsjerseys.com/wil … ng-jersey/ , 2013 | Author: Dale Peck | Posted in Education

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Find reputable dealers within your area. You can use any trade association or other professional bodies in your region to get referrals for reputable dealers. Some professionals will not only give you ideas on the best quality but also help negotiate with the seller for a cheaper deal. This is greatly beneficial as you end up with a high quality item at a reduced cost.


Always go for registered companies or dealers. Find out if it is ISO certified before signing any agreement with them. It would be a great mistake to buy from unreliable sellers as in case of an issue it becomes very challenging to get compensation or repairs for the item. An ISO certified company is guaranteed to meet any set quality control requirements


Learn to ask for a warranty even if you are buying pre-owned items. Some sellers of used CNC lathes in Roanoke VA give warranty for their machines for a specified period. Warranties are one way to determine how confident the seller is about the quality of an item. Avoid dealers who do not want to guarantee their items as this means you.

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