When the Iron Curtain fell 15 years ago, the free world's scientists got their first good look at the environmental consequences of East Europe's communist economy. \nScientists worldwide have since been studying the region's polluted sites and helping post-communist governments launch massive cleanups of old Soviet military bases, Czech uranium mines and Slovakian chemical plants. \nNow, the same scientists are turning their attention to a new and apparently larger environmental challenge -- China. \nA window to China's problems with land and water contamination is slowly opening to the rest of the world's environmental experts. As a result European scientists, including some from former communist countries, are getting involved. \nCzech plant biotechnology specialist Tomas Vanek, who was recently invited by Beijing authorities to work on soil contamination issues, says: "Now China is starting to cooperate." \nAn international conference in Nanjing last autumn reflected what appears to be China's growing willingness to accept foreign expertise. \nBritish, Dutch and Czech scientists were among those welcomed to the Soil Pollution and Remediation Conference, sponsored by the Chinese Academy of Sciences and other government agencies. \nThey focused on ways to remedy environmental problems created by China's ongoing rush to industrialize, modernize farms and expand cities. \nVanek presented a paper on the use of flax and hemp crops to remediate land contaminated by low-level radioactivity. \nAccording to his five-year study, flax can be safely grown in radioactive soil and then harvested for industrial purposes, such as fibres and non-edible oils. Both crops also prevent erosion and provide revenue to offset the costs of managing waste sites. \nSimilar studies on so-called "phytoremediation" techniques are being conducted around the world. \nSwedish scientists are now testing Vanek's idea to grow hemp on polluted land and process the harvested crop for auto insulation, rope or as an energy source. \nVanek said Chinese officials "are very interested" in phytoremediation as a low-cost solution to land pollution. \nHow much land in the world's largest country will require an environmental cleanup? \n"No one really knows," Vanek says. "This data is partially confidential." \nPapers presented by Chinese scientists at the conference confirmed Vanek's point. One by four experts from the science academy and a Nanjing university said the amount of soil pollution nationwide is "unclear." \nThe Chinese experts cited a 1999 Beijing government report which said "various contaminants" had polluted 20 percent of the nation's cropland, while "another report indicated that about 20 million hectares of the cropland was contaminated with heavy metals and about 60 million hectares of cropland was polluted with pesticides and other chemicals." \nOther Chinese scientists at the gathering emphasized a need for more basic research, environmental standards and government regulations to clean up polluted land as well as prevent contamination. \nA key impetus for giving the environment more attention, the scientists said, was foreign investment. \nMultinational companies that have expanded, or may expand, into China often carry their own land use standards which, for example, prevent them from building factories on heavily polluted ground. \nOne study at the conference described the complicated process of testing and then remediating polluted groundwater at a site in northern China where a company wanted to build an auto factory. The water had been contaminated by chemicals leaking from a former lumber yard. \nEuropean scientists like Vanek are offering their Chinese colleagues research findings as well as important information based on personal experience. \nOne study presented by Swiss and Bulgarian scientists, for example, examined problems near Sofia where farmland was contaminated by metals from industrial smelters. Similarly a British study looked at using plants to clean up sites tainted by explosives. \nVanek says recent Czech experience with cleaning up old uranium mines, which supplied material for Soviet warheads and nuclear plants, helped underscore the advantages of flax as a money-making cover crop in radioactive areas. \nNow Vanek is working through e-mails with Chinese scientists who face similar issues and, finally, are allowed to talk about it openly with experts around the world.
In Japan, as in Taiwan, interest in President Tsai Ing-wen’s (蔡英文) inaugural address on Wednesday last week for her second term was widespread. In her speech, which I listened to online, Tsai talked about how the COVID-19 pandemic has changed the global political economic order and altered global supply chains. This is an issue that Japan must also face, so I would like to present an idea for the people of Taiwan to consider. In the wake of the pandemic, Japan and Taiwan must consider the risks arising from supply chains’ dependence on China, as well as the risks that arise from
According to Japan’s Kyodo news agency, the Chinese People’s Liberation Army (PLA) is to hold military exercises in August centering on an attack on the Pratas Islands (Dongsha Islands, 東沙群島) in the South China Sea. Taiwan’s military leaders have let it be known that, should the islands be invaded by a hostile force, the nation would respond in one of three ways: a complete withdrawal, a fight to the death or surrender. The islands became a hot topic in Taiwan overnight, but any discussion of the Pratas Islands should factor in the ignominy on Taiwan’s loss of Thitu Island (Jhongye
As last year drew to a close, Taiwan lost several of its dwindling set of diplomatic allies, and China all but claimed victory in the long quest for universal recognition of the Peoples Republic of China. While Taiwan remained marginalized from traditional international institutions, intensifying protests in Hong Kong raised the specter of military repression in the territories still coveted by Beijing. At celebrations marking 70 years of Chinese Communist Party (CCP) rule, Chinese President Xi Jinping (習近平) also reasserted China’s ultimate goal of reunifying Taiwan with the mainland. Then COVID-19 hit. The pandemic has opened deep wounds in the increasingly