The focused focused explicitly on precipitation, aridity, drought, land degradation, soil constraints, and availability of cropland and pastures as potential environmental drivers of migration in drylands.
This paper reviews results from our modelling work on the underlying causes of tropical deforestation in three continents. This work has been based on the FAO Foris database, giving rise to more than 500 subnational observations. The roles of validity and reliability of empirical data, and alternative dependent variables in modelling work are discussed.
The authors consider how environmental security may differ from human security. Policies for reform are proposed after a review of population and land in Africa.
Based on a case study from the Usangu Plains, Tanzania, a receiving area for displaced herders and cultivators from elsewhere in Tanzania, this paper investigates the links between migration and ecological change by focusing on environmentally-displaced populations.
This paper analyses population and economic variables in an assessment of greenhouse gasses in both developed and developing countries.
the report presents a METHODOLOGY for assessing conditions in the coastal marine environment, using diseases as biological indicators ...HUMANS FACE INCREASING HEALTH RISKS associated with seafood consumption and recreation. Of deepest concern, INFECTIONS appear to be spreading among seagrass meadows and coral reefs ... Disease outbreaks can lead to significant ECONOMIC LOSSES ... Monitoring and supporting communication networks for HARMFUL ALGAL BLOOMS, and combining disease and environmental surveillance,can generate HEALTH EARLY WARNING SYSTEMS.
The objective of the two day brainstorming is to appreciate how environmental impacts are currently identified, and remedied. The objectives of the brainstorming are: a) to exchange views and experience on environmental damage prevention and mitigation in refugee situations; b) to receive critical comments and suggestions on the UNEP proposal ï''Prevention and Mitigation of Environmental Impact of Refugee Settlement and Flows in Africaï''; c) to identify gaps and prioritize actions which could be addressed through mutual collaboration and consultations.
We analyzed the multi-temporal and multi-seasonal NOAA AVHRR satellite data of 1985/86, and 1992/93 and SPOT VEGETATION data of 1999/2000 to (1) prepare historical land cover maps and (2) to identify areas undergoing major land cover transformations (called "hot spots") in the region. The identified "hot spot" areas were investigated using high-resolution satellite data such as Landsat and SPOT supplemented by intensive field survey.
Using Landsat satellite data, the authors propose driving forces of deforestation along the Colombia - Ecuador Border. Colonization and road construction are among the candidates.
Since 1994, the Swiss Tropical Institute (STI) - in collaboration with many local partner organisations has undertaken studies in Ouagadougou, Nouakchott and N'djamena aiming at introducing and validating new approaches in research on the interactions between the environment and the population undergoing urbanization.
