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GENEVA nike cortez white womens sale , Jan. 5 (Xinhua) -- Researchers have developed a novel and more accurate method to measure ocean temperatures by using the concentration of noble gases in Antarctic ice, which helps to conclude on the changes in sea temperature from the last ice age to the present day, according to a press release by the Swiss Federal Laboratories for Materials Science and Technology (EMPA) on Friday.


An international team of researchers, including those from EMPA and the University of Bern, has come up with the method that uses ice cores from Antarctica to more accurately measure average global ocean temperatures over the past 24,000 years, during which the transition from the last ice age occurred.


The layers of permanent ice in that region form an "archive of the atmosphere" that contains trapped bubbles of air and other gases known as noble gases nike cortez white sale , including krypton, xenon and argon.


As cooling water absorbs noble gases from the atmosphere and warming water releases them, the concentration of noble gases in these ice core bubbles can help scientists estimate the average temperature of the ocean at the time.


Using this method, the researchers identified an increase of 2.6 degrees Celsius in average ocean temperature over a period of 10,000 years, which has been published in the scientific journal Nature.


The team also believe that the method could in theory be useful for monitoring current temperature changes, and not just large-scale changes like the shift from the last ice age to the current warm age.


That is important because as the global climate warms nike cortez blue mens sale , most of the extra heat is absorbed by the oceans. Until now, measurements of average ocean temperature have been very complicated to produce and are often distorted by variations in location, season, and ocean depth.


According to EMPA, the basic idea of using the connection between the concentration of noble gases in the atmosphere and the average ocean temperature is correct and that the method works.




WELLINGTON, Aug. 14 (Xinhua) -- New Zealand's population grew by 100,400 in the year ended June 2017 nike cortez blue sale , the largest ever increase for a year, the country's statistics department Stats NZ said on Monday.


New Zealand's estimated resident population was 4.79 million as of June 30, and net migration -- arrivals minus departures -- contributed 72,300 people to the growth, along with 28,100 from natural increase -- births minus deaths, said a Stats NZ release.


Half of last year's growth was in the 15-39 age group nike cortez black leather sale , population statistics senior manager Peter Dolan said, adding that this reflects the contribution of migration to the population growth.


Over the last five years, New Zealand's population grew by nearly 390,000, the release said.


New Zealand's current gain from net migration equates to 15 people per 1,000 population, and much higher net migration rates were experienced in the late 1870s nike cortez black womens sale , it said, adding that "similar rates to today were also experienced in the early 1900s and early 2000s."


New Zealand's current net migration rate is high by New Zealand standards, but historically it has fluctuated more than other countries, Dolan said.


"At the moment, we're experiencing rates similar to Australia's in 2009," Dolan said.


Most migrants are arriving on short-term work and student visas, he said nike cortez black sale , adding that many of them, however, extend their visas, or transition to other visa types including residence visas, and it makes sense to count long-term stayers as part of the population, rather than as short-term visitors.


As a result of recent migration flows, the share of New Zealand's population aged 15-39 years rose from 33 percent in 2013 to 34 percent in 2017. This is a reversal of the trend that saw the share drop from 41 percent in the mid-1980s.


Growth of the broad over 65 age group continues to accelerate nike cortez red womens sale , up 25,000 in the last year, as the large birth cohorts of the 1950s-early 1970s begin to reach those ages, the release said.


The population at the oldest ages is also growing, reflecting decreasing death rates at all ages over a long period of time. The over-90 years population is now 30,000 compared with 20,000 in 2007. It is projected to reach 40 nike cortez red sale ,000 in the late 2020s and 50,000 in the early 2030s, it said.


Torrential rain causes floods, landslides in China's Guangxi


Qinzhou port plays important role in trade between China and ASEAN


"Comfort women" statues installed on buses in Seoul


Students attend military trainings camp in HK


Weekly choices of Xinhua photo (Aug. 5 - Aug. 11)


Highlights of multinational drill in Georgia


People mark national Fitness Day around China


Aerial view of Gula Town in S China


COLOMBO, Nov. 17 (Xinhua) -- Commonwealth leaders on Sunday committed to work on post-2015 development including debt financing and climate change during a conference that was marred by criticism over Sri Lanka's human rights record.


The Commonwealth Heads of Government Meeting (CHOGM) was preceded by three other conferences. The Commonwealth People's Forum and Youth Forum were successfully completed this week, with Sri Lanka agreeing to host a secretariat to represent 1.2 billion young people who are part of the organization's 53 members.


The Commonwealth Business Forum (CBF) saw a record attendance by 95 countries, including the largest delegation from a non- Commonwealth nation belonging to China. The CBF has outlined a target of attracting 2 billion U.S. dollars in investment to Sri Lanka.


In addition to the 100 members of the Chinese delegation www.cortezshoessale.com , 42 other Chinese companies participated in a special trade and investment exhibition held on the sidelines of the CHOGM.


"We thank the partnership of the Chinese government, and the business organizations, in our development projects. Bilateral trade between .
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