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SHENZHEN -- Construction began Saturday on an experimental facility which will offer a platform for Chinese and foreign scientists to work together for discovering a new kind of neutrino oscillation in Shenzhen, South China's Guangdong Province.It was the second biggest cooperation program Chinese high energy scientists ever conducted with other foreign counterparts since October 1988 when the positive-negative electron collider was built in Beijing.Through the collider, scientists from China and the United States have cooperated and carried out legions of scientific research.Saturday's construction commencement function was attended by more than 100 people, including government officials and foreign diplomats, such as Dr. Robin Staffin, Associate Director of Science in the US Department of Energy.Neutrino Oscillation is an intriguing behavior of a sub-atomic particle called neutrino.And the new facility is being built in the mountain near Daya Nuclear Power Plant, which has four reactors with a combined thermal output of 11.6 million kw in operation, and Ling'ao nuclear power plant is not far away. Both nuke power plants will serve as sources of anti-neutrinos for the experiments when the facility is finished.Workers will build three underground experimental halls which will be connected by long tunnels in the mountain that shields the experiment from unwanted cosmic radiation.Each hall will feature a 10-m deep water-pool within which eight anti-neutrino detectors will be deployed. The water protects the detectors from nearby radiation that interferes with the measurement, and helps identify surviving cosmic radiation.And the first experimental hall is expected to be ready by the end of 2008. Commissioning of the detectors in this hall will take place in 2009.Civil engineering construction is anticipated to last about two years, with installation of the last detector scheduled for 2010.Upon completion of the new facility, more than 190 scientists from six countries and regions including the Chinese mainland, Hong Kong, Taiwan Province, the United States and Russia will come over to do research work, according to Chen Hesheng, Chief of the Institute of High Energy Physics with the Chinese Academy of Sciences (CAS).The facility will have a budget of 250 million yuan (US.25 million). And China will be responsible for infrastructure construction and making of four detectors. And the United States will be responsible for making of the rest of the detectors.Wang Yifang, chief scientist on the experiment, said he was confident that the program would make an important contribution to finding a new breakthrough in China's research efforts in particle physics, starting a new horizon in world's neutrino research, and to improving the overall strength of China in science and technology.

CAPE TOWN, South Africa - Central bank chiefs from the U.S., Europe and Japan warned Tuesday of the risks of the Chinese economy overheating, potentially adding to inflationary pressures in other countries. U.S. Federal Reserve Chairman Ben Bernanke and European Central Bank President Jean-Claude Trichet also urged Beijing to let its currency rise in value, saying it would benefit both China and the global economy. "A quick pace toward greater flexibility would be in China's interest and create more flexibility for monetary policy to address the potential overheating of their economy," Bernanke said in a satellite linkup with a banking conference in Cape Town. "We could all be better off, China on the one hand and the global economy on the other hand," echoed Trichet. Critics argue that China is keeping its currency artificially low, contributing to its massive trade surplus with other countries and undermining competitors' prices. Both Bernanke and Trichet conceded that the cheapness of Chinese products flooding world markets had helped reduce global inflation, although said this was balanced by China's huge appetite for fuel and raw materials -- which has contributed to higher oil prices. Overall, China's impact on global inflation was "modest," Bernanke said. China is one of the world's fastest-growing economies, and its expansion has had a ripple effect on prosperity in other countries and offset more modest growth rates in North America, Europe and Japan. Trichet said the current boom was "absolutely exceptional in the global economy," but warned that this could not last indefinitely. "Complacency would be the worst possible advice for all of us," he said. Japan, where growth is a sluggish 2 percent, is keeping a watchful eye on the new Asian giant. "We need to be mindful of the risk of overheating and we can't rule out some risk of inflation in the Chinese economy," said Toshihiko Fukui, governor of Japan's central bank. China is witnessing a stock market boom, with millions of first-time investors jumping into the market, tapping savings and retirement accounts and mortgaging homes to buy stocks. Authorities are worried that the new money is fueling a bubble in prices. Chinese stocks rebounded Tuesday in volatile trading after their sharpest one-day drop in three months a day earlier as strong buying by institutions offset selling by retail investors. The benchmark Shanghai Composite Index fell 8.3 percent on Monday -- the benchmark's sharpest decline since an 8.8 percent drop Feb. 27 triggered a global market sell-off.

UNITED NATIONS -- China's special representative for climate change talks, Yu Qingtai, urged the international community to conduct substantive negotiations aimed at securing a new global post-2012 agreement on climate change by 2009.Speaking at the UN General Assembly debate on climate change, Yu said that the Bali roadmap, adopted at the UN climate conference last December by delegates from nearly 190 nations, is "only a beginning.""The international community must continue with the task of conducting substantive consultations and negotiations, so as to insure a final agreement on the post-2012 international cooperation on climate change within the next two years," he said.Yu emphasized that any framework for future arrangements must be firmly based on the principles established by the UN Framework Convention on Climate Change (UNFCC) and the Kyoto Protocol, particularly the principle of common but differentiated responsibilities.The four building blocks of the roadmap -- mitigation, adaptation, technology transfer and financing, are all important components for developing an effective framework for responding to climate change, and should be given equal attention, and none of them should be neglected, he noted.Urging developed countries to further strengthen policies and measures aimed at emission reduction, the special envoy said the concerns by developing countries over adaptation, technology transfer and financing should be addressed in earnest, so that they will have the capacity to make greater contributions to confronting the challenge from climate change."The effectiveness of participation by the developing countries will, to a significant extent, depend on whether the developed countries will take substantive actions on financial and technological assistance," he said. "Effective mechanisms should be set up as soon as possible to insure that measurable, reportable and verifiable assistance be provided to the developing countries with regard to financial resources, technology and capacity building," he said.China takes climate change "very seriously" and have adopted various policies and measures to respond to the challenge, with " noticeable success," he said."While making our own due contribution, we will also help other developing countries to enhance their ability to adapt to climate change," Yu added.Representatives, including some 20 ministers, from more than 100 countries and international organizations attended the two-day high-level session and exchanged views on ways to move forward the negotiating process launched in the Bali conference.

BEIJING - China's currency, the yuan, hit a new high against the US dollar on Thursday, following an overnight key interest rate cut in the United States.The yuan, also known as the renminbi, went up 145 basis points from the previous day to a central parity rate of 7.1853 yuan to one dollar, breaking the 7.19 mark.The Federal Reserve on Wednesday cut US interest rates by a bold half-percentage point as part of its efforts to shore up economic growth.The move came just eight days after the US central bank slashed rates by three quarters of a percentage point, leading the dollar to weaken against other major world currencies.The Chinese currency had appreciated against the greenback by about 12 percent since a new currency regime was imposed in July 2005 to revalue and de-peg it from the dollar.It had climbed 6.9 percent against the dollar in the past year, but some US critics say it remains undervalued, giving Chinese exporters an unfair advantage and resulting in the massive trade imbalance between the two countries.China was not against revaluation of the yuan, but opposed "excessively rapid" appreciation that was inappropriate to its national conditions, Commerce Minister Chen Deming said last month.Premier Wen Jiabao also said China would improve the yuan's exchange rate mechanism in a controllable and gradual manner, let the market play a bigger role in the mechanism and enhance the currency's flexibility.