Human health in relation to exposure to solar ultraviolet radiation under changing stratospheric ozone and climate.

The Montreal Protocol has limited increases in the UV-B (280-315 nm) radiation reaching the Earth's surface as a result of depletion of stratospheric ozone. Nevertheless, the incidence of skin cancers continues to increase in most light-skinned populations, probably due mainly to risky sun exposure behaviour. In locations with strong sun protection programs of long duration, incidence is now reducing in younger age groups. Changes in the epidemiology of UV-induced eye diseases are less clear, due to a lack of data. Exposure to UV radiation plays a role in the development of cataracts, pterygium and possibly age-related macular degeneration; these are major causes of visual impairment world-wide. Photodermatoses and phototoxic reactions to drugs are not uncommon; management of the latter includes recognition of the risks by the prescribing physician. Exposure to UV radiation has benefits for health through the production of vitamin D in the skin and modulation of immune function. The latter has benefits for skin diseases such as psoriasis and possibly for systemic autoimmune diseases such as multiple sclerosis. The health risks of sun exposure can be mitigated through appropriate sun protection, such as clothing with both good UV-blocking characteristics and adequate skin coverage, sunglasses, shade, and sunscreen. New sunscreen preparations provide protection against a broader spectrum of solar radiation, but it is not clear that this has benefits for health. Gaps in knowledge make it difficult to derive evidence-based sun protection advice that balances the risks and benefits of sun exposure.

Labour migration in the Arab Gulf states: patterns, trends and prospects.

PIP: This paper presents an analysis of recent changes in the scale and characteristics of non-national migration to, and employment in, the 6 Gulf Cooperation Council (GCC) member states. In 1985, the size of the workforce in the Gulf States was 7.1 million. Non-nationals comprised 68% (in Saudi Arabia) to almost 91% (in United Arab Emirates) of the workforce. 63% of the non-nationals were from Asia. Non-national Arab workers represented 30% of the total. In 1985, 36% of all migrant workers came from India and Pakistan. Almost 30% of the non-nationals were employed in services (financial, personal, and community), and almost 29% were in construction. Non-nationals dominate 3 sectors: construction, manufacturing, and utilities. Non-nationals account for a relatively low 55% of the oil sector. The phenomenal rate of growth in non-national workforces during the mid 1970s began to slow in the 1980s. Labor permit issues peaked in the late 1970s and again in 1983-84. The timing and scale of the decline varies by sending country and by destination, reflecting variations in the rate and extent of the economic slowdown in different GCC states, as well as relative wage rates, occupational composition, and organization of the various labor flows. For example, Indian case worker placements fell by 49% between 1983 and 1986, while the number of Filipinos placed fell by 15%. During the 1980s, most Gulf states have increased efforts to enforce labor and residence regulations, but the number of illegal workers has continued to grow. During the 1st half of the 1980s, demand for non-national labor increasingly turned towards new supplies in South and Southeast Asia, notably Bangladesh, Sri Lanka, Indonesia, Thailand, and the Philippines. Meanwhile, an increasing share of Arab and South Asian workers were renewing their work permits, often on less favorable terms. The construction sector has had the greatest decline in new labor inflows; however, the service sector is still growing. Wage rates have fallen an average of 20-30%, and up to 45% since 1983. Since 1985, about 615,000 non-national workers have left. Southeast Asian labor has been most acutely affected by the sharp downturn in economic activity. By 1990, the non-national workforce should decline to 4.36 million, but then it will increase slowly. The number and share of Southeast Asians will rise.^ieng

Migrant workers in the Arab Gulf: the impact of declining oil revenues.

"This article explores the relationship between government expenditure and labor immigration in the Arab Gulf states. This relationship was close and positive during the rapid growth of the 1970s. Using Kuwait as a case study, trends in immigrant labor movements over the period 1981-85 are considered in detail. This analysis shows that the current economic downturn, reflecting the collapse of the world oil prices, has not resulted in the large scale re-export of foreign labor which was envisaged. The reasons for this foreign labor retention are considered and the authors speculate on future migration trends in the region."

International migration in the Arab region: rapid growth, changing patterns, and broad implications.

PIP: The authors analyze trends and patterns of international migration in the Arab region, with a focus on labor shortages resulting from the migration of skilled manpower to the capital-rich Arab states. The effects of migration on both the sending and receiving countries are examined, and the utilization of new sources of manpower is considered^ieng