Search
Now showing items 221-230 of 570
Desertification Control Bulletin Number 14 1987: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation
(1987)
In this issue: Shifting Sands and Human Sorrow: Social response to drought and desertification; Camel Vs Cattle Pastoralism: stopping desert spread; African Drought and its Impacts: Revived interest in a recurrent phenomenon; ...
Desertification Control Bulletin Supplement to Number 10, 1984: A Bulletin of World Events in the Control of Desertification Restoration of Degraded Lands and Reforestation
(1984)
In this issue: The Governing Council Decision 12/10 - Desertification; Back to the war; Summary of the Activities and Output of the General Assessment of Progress in the Implementation of the plan of action to combat ...
The Greenhouse Gases - UNEP/GEMS Environment Library No. 1
(1987)
The Earth's climate, over the millennia of its existence, has been shaped by the cosmic forces of nature—by the cooling of the Earth's core, variations in the intensity of the Sun, changes in the tilt of our planet. These ...
Environmental Impact Assessment: Operational Cost Benefit Analysis - MARC Report No. 42
(1988)
This guideline report concentrates on the operational aspects of applying CBA to evaluate projects when there are significant environmental impacts. It is addressed to the need for officials and planners in developing ...
The African Elephant - UNEP/GEMS Environment Library No. 3
(1989)
The way in which the human species treats his fellow animals is often scandalous. The story that unfolds in these pages is one of the worst examples: over the past decade, elephant numbers in several African countries have ...
Baseline Study of the Vitogo River and Associated Environment - UNEP Regional Seas Reports and Studies No. 93
(United Nations Environment Programme, 1988)
Biological Monitoring of Environmental Contaminants (Plants): Executive summary - A Technical Report
(1986)
A wide range of contaminants enter terrestrial, freshwater and marine habitats. Concentrations of specific contaminants can be measured by physicochemical methods; however, the response of plants to elevated concentrations ...
International Seminar on Modern Aspects of Microbiological Hydrometallurgy and International Training Course on Microbiological Leaching of Metals from Ores
(1985)
The International Seminar on Modern Aspects of Microbiological Hydrometallurgy held in Moscow on June 21-26, 1982 was attended by the Course trainees and internationally reputed scientists in this field who presented papers ...
Bioenergy Tree Plantations in the Tropics: Ecological Implications and Impacts - Commission on Ecology Papers Number 12
(International Union for Conservation of Nature and Natural Resources, 1987)