" Lei Sheng of the Chinese delegation receives an interview prior to the flag-raising ceremony at the Olympic Village in Rio de Janeiro Roberto Alomar Blue Jays Jersey , Brazil, on Aug. 3, 2016. (XinhuaYue Yuewei)
RIO DE JANEIRO， Aug. 3 (Xinhua) -- Olympic fencing champion Lei Sheng has been named China's flag-bearer at the Rio Olympic Games opening ceremony.


The 32-year-old Lei became China's first male foil Olympic champion four years ago in London. The 1.90m fencer was also a twice world team titlist.


China's flag-bearers at the previous summer Olympic Games were basketball players since 1984. Former NBA star Yi Jianlian was picked to carry the flag in London.

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WASHINGTON, Aug. 2 (Xinhua) -- By the end of this century,summer heat waves could exceed the upper limit of humansurvivability at ""a few locations"" in South Asia, a region of deeppoverty where one-fifth of the world's people live, a new studysaid Wednesday.


The most affected regions would be the Chota Nagpur Plateau Roy Halladay Youth Jersey ,northeastern India, and Bangladesh, according to the studypublished by the U.S. journal Science Advances.


""Our findings have significant implications to the ongoingconsiderations regarding climate change policy,"" said the study,which is based on detailed computer simulations using the bestavailable global circulation models.


The new findings were conducted by Professor Elfatih Eltahir ofthe Massachusetts Institute of Technology, Assistant Professor EunSoon Im of the Hong Kong University of Science and Technology andProfessor Jeremy Pal at Loyola Marymount University in LosAngeles.


Scientists have known that hot weather's most deadly effects forhumans come from a combination of high temperature and highhumidity, an index which is measured by a reading known as wet-bulbtemperature.


The wet-bulb temperature reflects the ability of moisture toevaporate Jesse Barfield Youth Jersey , which is the mechanism required for the human body tomaintain its internal temperature through the evaporation ofsweat.


At a wet-bulb temperature of 35 degrees Celsius, the human bodycannot cool itself enough to survive more than a few hours.


A previous study found that the wet-bulb temperature has rarelyexceeded about 31 degrees Celsius anywhere on Earth in the pastdecades.


However, when it does happen, ""the most detrimental humanimpacts of climate change on heat waves could potentially be thosein developing nations because of the vulnerability of theirpopulations,"" the study said.


In much of India and Pakistan, an apparent rising trend in thefrequency of deadly heat waves has been observed, it said.


For example Roger Clemens Youth Jersey , the fifth deadliest heat wave in recorded historyaffected large parts of India and Pakistan, claiming around 3,500lives in 2015.


The new study showed that by century's end, absent seriousreductions in global emissions, wet-bulb temperatures are projectedto approach the threshold of survivability over most of South Asia,including the Ganges river valley, northeastern India Paul Molitor Youth Jersey , Bangladesh,the eastern coast of India, Chota Nagpur Plateau, northern SriLanka, and the Indus valley of Pakistan.


And the temperatures could exceed the upper limit at a fewlocations in the Chota Nagpur Plateau, northeastern India, andBangladesh.


In today's climate Russell Martin Youth Jersey , about 2 percent of the Indian populationsometimes gets exposed to extremes of 32-degree wet-bulbtemperatures.


According to this study, by 2100 that will increase to about 70percent of the population, and about two percent of the people willsometimes be exposed to the survivability limit of 35 degrees.


And because the region is important agriculturally, it's notjust those directly affected by the heat who will suffer, Eltahirsaid.


""With the disruption to the agricultural production, it doesn'tneed to be the heat wave itself that kills people. Production willgo down, so potentially everyone will suffer Josh Donaldson Youth Jersey ,"" he said.


However, under a moderate mitigation scenario, which is roughlycomparable to the goals pledged by the 2015 UN Conference onClimate Change in Paris, these dramatic, deadly effects can largelybe averted, the researchers noted.


""With mitigation, we hope we will be able to avoid these severeprojections. This is not something that is unavoidable Kevin Pillar Youth Jersey ,"" Eltahirsaid.

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