I: Greenhouse Effects.- The Greenhouse Effect, Stratospheric Ozone, Marine Productivity, and Global Hydrology: Feedbacks in the Global Climate System.- Effects of West African Air Humidity on Atlantic Sea Surface Temperature.- Determining Natural and Manmade Climate Change: Historical Review and Implications for the 1900's and Beyond.- Atmospheric, Oceanic and Climatic Response to Greenhouse and Feedback Effect.- Ice Sheets and Sea Level Change as a Response to Climatic Change at the Astronomical Time Scale.- Present, Past and Future Precipitation: Can We Trust the Models?.- II: Sea Level.- Sea Level.- Non-Eustatic Sea Level Changes from Mediterranean Tide Gages.- Present and Near-Future Sea-Level Changes: An Assessment.- Influence of Global Climatic Processes on the Hydrosphere Regime.- III: Drought and Water Deficiency.- Water Deficiency Versus Water Excess: Global Management Potential.- Extraterrestrial Impacts, Volcanoes, Climate and Sea Level.- Recent Developments in Research on the Loess in China.- Desertification or Desert Reclamation? Change in Climate or in Human Behaviour?.- Natural Protection and Voluntary Extension of the Tropical African Forest Cover.- River and Soils Cyclicities Interfering with Sea Level Changes.- Natural Aridification or Man-Made Desertification? A Question for the Future.- Climatic Oscillations as Registered Through the Ruzizi Plain Deposits (North Lake Tanganyika) Zaire - Burundi - Rwanda.- Global Change: Population, Land-Use and Vegetation in the Mediterranean Basin by the Mid-21st Century.- An Indication of an Abrupt Climatic Change as Seen from the Rainfall Data of a Mauritanian Station.- IV: Management, Techniques and Case Studies Section A: Sea Level.- Practical Problems for Coastal Submergence in the Light of Secular Trends.- Risk Assessment and Causes of Subsidence and Inundation along the Texas Gulf Coast.- Vulnerability of Coastal Lowlands. A Case Study of Land Subsidence in Shanghai, P.R. China.- The Impact of Neotectonics with Regard to Canals, Pipelines, Dams, Open Reservoirs, Etc. in Active Areas: The Case of the Hellenic Arc..- Evolution of Barrier Island-Lagoon Systems from 200 Ka Ago to the Present in the Littoral Zone of Alicante (Spain). Impact of a Probable Sea Level Rise.- Australia's Hydrological Storage and Rising Sea Level Hazard.- IV: Management, Techniques and Case Studies Section B: Greenhouse.- Possible Effects of Man on the Carbon Cycle in the Past and in the Future.- The Relationship of Inqua to the Global Change Program and Other International Groups.- IV: Management, Techniques and Case Studies Section C: Management.- Estimation of Natural and Man-Induced Groundwater Recharge.- Development and Management of Fossil Groundwater Resources for Purposes of Drought Mitigation.- Small Dams and Subsurface Dams in Arid and Semi-Arid Areas: The Example of Saharan and Sahelian Africa.- Study of the Chad Basin Water Supply by Catchment Carried Out in the Congo-Zaire Basin.- Groundwater Recharge and Storage by Damming a Small Ephemeral Stream.- Sea Level Rise and Artificial Groundwater Recharge. A Study on the Feasibility of Geohydrologic Management.- Climatic Changes in the Levant and the Possibility of their Mitigation.- The Legacy of Sahelian Management: 1965-1988.- Saline Groundwater in the Canary Islands (Spain) Resulting from Aridity.- IV: Management, Techniques and Case Studies Section D: Techniques.- Geological Resources for Construction with Low Energy and Low Temperature Input.- Site-Investigation in Semi-Arid And Arid Regions for Reconnaissance and Engineering-Geological Purposes.- Possible Engineering Solutions and a Case Study.- V: Panel Discussions, Conclusions and Recommendations.- Conclusions and Recommendations; Reports of Sessions and Panel Discussions.- Meeting Report.