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The Impact of Climate Change on Drylands
Sahelian West Africa has recovered from the disastrous droughts of the 1970s and 1980s. People have learned to adapt to risk and uncertainty in fragile dryland environments. They, as well as global change scientists, are worried about the impact of climate change on these West African drylands. What do the experiences of the last thirty years say about the preparedness for higher temperatures, lower rainfall, and even more variability? Detailed studies on Dryland West Africa as a whole, and on Burkina Faso, Mali and Northern Ghana in particular show an advanced coping behaviour and increased adaptation, but also major differences in vulnerability and coping potential. Climate change prepared...
Daily Graphic
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Daily Graphic
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Managing Agrodiversity the Traditional Way
This publication is based on research carried out in West Africa, particularly in Ghana, undertaken within the UNUP project on 'People, Land Management and Ecosystem Conservation' (PLEC). It contains a number of papers on the topic of how farmers traditionally cultivate and conserve biodiversity whilst also using the land for food production, under the headings of: methodological approaches and knowledge systems; cropping systems and related case studies; and social dimensions of resource management. It highlights PLEC interventions for sustaining agrodiversity for rural livelihoods and identifies lessons for policy and development planning.
Polymer Modified Asphalt Durability in Pavements
The project was designed to develop (1) a better quantitative understanding of the relation between laboratory accelerated binder aging and field aging, (2) a test procedure to measure properties of an aged binder that relate to failure on the road and (3) a proposed specification for estimating the relative durability of binders in the presence of oxidative aging. Tests were conducted on original base and polymer modified binders, laboratory compacted mixtures, and pavement aged binders. The project necessarily evolved to a more comprehensive approach to improving pavement service life.
Government Gazette
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African Agenda
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