The "Asian Brown Cloud," a 3km-thick blanket of pollution over South Asia, may be causing the premature deaths of a half-million people in India each year, deadly flooding in some areas and drought in others, according to the biggest-ever scientific study of the phenomenon.
The grimy cocktail of ash, soot, acids and other damaging airborne particles is as much the result of low-tech polluters like wood- and dung-burning stoves, cooking fires and forest clearing as it is of dirty industries, the UN-sponsored study found.
"When you think about air pollution, many people think of industry and fossil fuels as the only causes," report co-author Paul Crutzen, a scientist at the Max-Planck Institute for Chemistry in Mainz, Germany, told a news conference in London.
Often ignored, he said, was "biomass burning," including forest fires and the burning of vegetation to clear land or to warm the homes of poor people.
More than 200 scientists contributed to the study, overseen by the UN Environment Program in preparation for the World Summit on sustainable Development opening Aug. 26 in Johannesburg, South Africa. They used data from ships, planes and satellites to study Asia's haze from 1995 to 2000.
The scientists say more research is needed but that some trends are clear. Respiratory illness appears to be increasing along with the pollution in densely populated South Asia, with one study suggesting the pollution causes as many as 500,000 premature deaths annually in India.
The dense cloud of pollution -- also caused by auto emissions, factories and waste incineration -- cuts the amount of sunlight reaching the ground and the oceans by 10 percent to 15 percent, cooling the land and water while heating the atmosphere.
That phenomenon appears to have altered the region's monsoon rains -- increasing rainfall and flooding in Bangladesh, Nepal and northeastern India, while cutting back needed seasonal precipitation in Pakistan and northwestern India.
Floods, drought, sunlight reduction and acid rain all can hurt agricultural yields, with the report indicating the pollution may be cutting India's winter rice harvest by as much as 10 percent.
Veerabhadran Ramanathan of the Scripps Institution of Oceanography in La Jolla, California, one of the report's authors, said the extent of the sunlight loss was "a major surprise."
Scientists say it's too early to draw definite conclusions about the impact of the cloud, and of similar hazes over East Asia, South America and Africa.
"We need much more basic scientific data to be able to establish what are the consequences for human health and the environment," said co-author Crutzen, co-winner of the 1995 Nobel chemistry prize for his work on the ozone layer.
But they warn the impact could be global since prevailing winds can push pollution clouds halfway round the world within a week.
It's unclear what the haze's relationship is to global warming, which most scientists believe is caused by the emission of greenhouse gases that trap the Earth's heat. The pollution cloud appears to cool the area below by blocking sunlight.
South Korea has adjusted its electronic arrival card system to no longer list Taiwan as a part of China, a move that the Ministry of Foreign Affairs said would help facilitate exchanges between the two sides. South Korea previously listed “Taiwan” as “Taiwan (China)” in the drop-down menus of its online arrival card system, where people had to fill out where they came from and their next destination. The ministry had requested South Korea make a revision and said it would change South Korea’s name on Taiwan’s online immigration system from “Republic of Korea” to “Korea (South),” should the issue not be
The Legislative Yuan’s Finance Committee yesterday approved proposed amendments to the Amusement Tax Act (娛樂稅法) that would abolish taxes on films, cultural activities and competitive sporting events, retaining the fee only for dance halls and golf courses. The proposed changes would set the maximum tax rate for dance halls and golf courses at 50 and 20 percent respectively, with local governments authorized to suspend the levies. Article 2 of the act says that “amusement tax shall be levied on tickets sold or fees charged by amusement places, facilities or activities” in six categories: “Cinema; professional singing, story-telling, dancing, circus, magic show, acrobatics
Tainan, Taipei and New Taipei City recorded the highest fines nationwide for illegal accommodations in the first quarter of this year, with fines issued in the three cities each exceeding NT$7 million (US$220,639), Tourism Administration data showed. Among them, Taipei had the highest number of illegal short-term rental units, with 410. There were 3,280 legally registered hotels nationwide in the first quarter, down by 14 properties, or 0.43 percent, from a year earlier, likely indicating operators exiting the market, the agency said. However, the number of unregistered properties rose to 1,174, including 314 illegal hotels and 860 illegal short-term rental
INFLATION UP? The IMF said CPI would increase to 1.5 percent this year, while the DGBAS projected it would rise to 1.68 percent, with GDP per capita of US$44,181 The IMF projected Taiwan’s real GDP would grow 5.2 percent this year, up from its 2.1 percent outlook in January, despite fears of global economic disruptions sparked by the US-Iran conflict. Taiwan’s consumer price index (CPI) is projected to increase to 1.5 percent, while unemployment would be 3.4 percent, roughly in line with estimates for Asia as a whole, the international body wrote in its Global Economic Outlook Report published in the US on Monday. The figures are comparatively better than the IMF outlook for the rest of the world, which pegged real GDP growth at 3.1 percent, down from 3.3 percent
RSS