综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

WORLD> Global General
Report: climate change is driving up migration
(Agencies)
Updated: 2009-06-12 13:17

BONN, Germany -- Global warming is uprooting people from their homes and, left unchecked, could lead to the greatest human migration in history, said a report released Wednesday.

Estimates vary on how many people are on the move because of climate change, but the report cites predictions from the International Organization for Migration that 200 million people will be displaced by environmental pressures by 2050. Some estimates go as high as 700 million, said the report, released at UN negotiations for a new climate treaty.

Related readings:
Report: climate change is driving up migration US climate bill, UN pact more likely in 2010
Report: climate change is driving up migration Climate change causes 300,000 deaths a year
Report: climate change is driving up migration Climate change to cause more heat waves, allergies
Report: climate change is driving up migration China-US co-op on climate change crucial - expert

Report: climate change is driving up migration China US to enhance co-op on climate change

Researchers questioned more than 2,000 migrants in 23 countries about why they moved, said Koko Warner of the UN University, which conducted the study with CARE International and the Center for International Earth Science Information Network at Columbia University.

The results were "a clear signal" that environmental stress already is causing population shifts, she said, and it could be "a mega-trend of the future."

The potential for masses of humanity fleeing disaster zones or gradually being driven out by increasingly harsh conditions is likely to be part of a global warming agreement under negotiation among 192 countries.

A draft text calls on nations to prepare plans to adapt to climate change by accounting for possible migrations.

At US insistence, however, the term "climate refugees" will be stricken from the draft text because refugees have rights under international law, and climate migrants do not fill the description of "persecuted" people, said Warner.

The report, "In Search of Shelter: Mapping the Effects of Climate Change on Human Migration and Displacement," studies people in some of the world's great river deltas who could be subject to glacial melt, desert dwellers who are vulnerable to increasing drought, and islanders whose entire nations could be submerged by rising sea levels.

It did not try to assess conflicts caused by climate change. The war in Sudan's desert Darfur region has partly been blamed on contested water supplies and grazing lands, and concern over future water wars has mounted in other areas of the world.

The report said 40 island states could disappear, in whole or in part, if seas rise by two meters (six feet). The Maldives, a chain of 1,200 atolls in the Indian Ocean has a plan to abandon some islands and build defenses on others, and has raised the possibility of moving the entire population of 300,000 to another country.

Melting glaciers in the Himalayas threaten repeated flooding in the Ganges, Mekong, Yangtze and Yellow river basins, which support 1.4 billion people, or nearly one-fourth of humanity, in India, southeast Asia and China. After the floods will come drought when seasonal glacier runoff no longer feeds the rivers, it said.

In Mexico and Central America drought and hurricanes have led to migrations since the 1980s and they will get worse, it said.

Homes are not always abandoned forever, the researchers said. "Disasters contribute to short-term migration," especially in countries that failed to take precautions or lack adequate responses, said Charles Ehrhart of CARE.

Most migration will be internal, from the country to the city, it said.

平果县| 宁夏| 佳木斯市| 洛宁县| 义马市| 肃宁县| 峡江县| 鱼台县| 晴隆县| 阳曲县| 年辖:市辖区| 连云港市| 荔浦县| 辽宁省| 青川县| 东方市| 普定县| 达州市| 五原县| 锡林郭勒盟| 沙坪坝区| 东城区| 瑞金市| 共和县| 海兴县| 革吉县| 宁德市| 新绛县| 托克托县| 建瓯市| 武穴市| 和平区| 固镇县| 南宫市| 英德市| 焉耆| 沾益县| 盐山县| 赣榆县| 惠东县| 姚安县|