{"title":"Joel E Cohen","description":"\u003cp\u003e0\u003c\/p\u003e","products":[{"product_id":"how-many-people-can-the-earth-support-book-joel-e-cohen-9780393314953","title":"How Many People Can the Earth Support","description":"With the world population now at 5.7 billion, and increasing by about 90 million per year, we have clearly entered a zone where we can see, and may well encounter, limits on the human carrying capacity of the Earth. 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But efforts to universalize the provision of high-quality schooling face major problems. In\u0026gt;\u003ci\u003eEducating All Children\u003c\/i\u003e (which grew out of a multidisciplinary project undertaken by the American Academy of Arts and Sciences), leading experts consider the challenges of achieving universal basic and secondary education globally. The contributors discuss the current state of education and how to measure global educational progress, the history of compulsory education, political and financial obstacles to expanding education, the role of educational assessment and evaluation in developing countries, cost estimates for providing universal education (and why they differ so widely), the potential consequences of expanded global education, and the relationship between education and health.The research suggests that achieving universal primary and secondary education is both urgently needed and feasible. Will the international community commit the necessary economic, human, and political resources? The challenge, say the editors, is as inspiring and formidable. as any extraterrestrial adventures--and far more likely to enrich and improve life on earth.\u003c\/p\u003e","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":50347471569169,"sku":"CIN026253293XG","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/026253293X.jpg?v=1751133263"},{"product_id":"how-many-people-can-the-earth-support-book-joel-e-cohen-9780393038620","title":"How Many People Can the Earth Support?","description":"This text seeks to explore the degree to which the Earth's resources can support the acceleration in the growth of the world's population. 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This book presents a new technique for obtaining a partial answer to this elementary question about niche space. The author bases his technique on a relation between the combinatorial structure of food webs and the mathematical theory of interval graphs. Professor Cohen collects more than thirty food webs from the ecological literature and analyzes their statistical and combinatorial properties in detail. As a result, he is able to generalize: within habitats of a certain limited physical and temporal heterogeneity, the overlaps among niches, along their trophic (feeding) dimensions, can be represented in a one-dimensional niche space far more often than would be expected by chance alone and perhaps always. This compatibility has not previously been noticed. It indicates that real food webs fall in a small subset of the mathematically possible food webs. 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