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While the Declaration of Principles agreed between the government of Israel and the Palestine Liberation Organization in September 1993 was widely welcomed as the major breakthrough in the seemingly intractable Arab‐Israeli conflict, progress proved to be difficult, uncertain and, at times, bloody. This article places the agreement in the context of previous peace endeavours in an attempt to explain why the apparent early promise proved so difficult to sustain.  相似文献   
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In a companion paper to “Environmentalism in the USSR: The Opposition to the River Diversion Projects,” two geographers survey the current status of water transfer research after cancellation of the European and Siberian diversion projects and offer a different perspective on the debates leading to that cancellation. Implications of a demand-side approach to Centra! Asian water management problems are then assessed in light of (a) contradictory objectives of expanding irrigated hectarage and mitigating environmental deterioration in the Aral basin and (b) the problematic nature of projected water savings and costs involved in their realization. Journal of Economic Literature, Classification Numbers: 052, 124, 720.  相似文献   
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Shared symbols are an essential element in nationalist mobilisation. National symbols provide perhaps the strongest, clearest statement of national identity and are socially constructed. The effectiveness of these symbols will determine the success or failure of a political and cultural project. The effectiveness of cultural and political symbols can be seen through examination of the project of pan-Catalanism, the Països Catalans (the Catalan-speaking countries). This political project is rather unusual in the nationalist literature in being unable to advance beyond an embryonic stage. While cultural affinity can be determined within the Catalan-speaking territories, a wider claim to pan-Catalan political identity has foundered. This article argues that the absence of a shared attachment to national symbols in Catalonia, Valencia, the Balearics and other Catalan-speaking areas, provides the principal explanation why successful nation building has not been achieved.  相似文献   
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Biochar currently attracts technological and market optimism, promising multiple wins – for climate change, food security, bioenergy and health – not least for African farmers. This paper examines the political-economic and discursive processes constructing biochar as a novel green commodity, creating new alliances amongst scientists, businesses, venture capital firms and non-governmental organisations. Carbon market logics are not only threatening large-scale land grabs for biochar feedstocks but also other forms of resource, labour and ecological appropriation through driving research and development and shaping small-scale pilot projects. In these, soil carbon is ‘chopped out’ of its ecosystem and social contexts and revalued as exchangeable pieces of carbon nature. Farmers are hailed as green actors and market winners, provided they discipline their practices according to these new technical and market logics. These discourses contrast strongly with the farmers' existing conceptual and practical repertoires; a case study from Liberia illustrates how farmers already manipulate soil carbon in creating locally valued anthropogenic dark earths, but within diverse farming repertoires, ontologies of human–nature interrelationship and historical and political ecologies.  相似文献   
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