[lemma=to | word=□]
[lemma=to | word=Penn]
Land degradation , deforestation , lack of access to safe water and loss of biodiversity , compounded by climatic variability , all contribute to a general reduction in environmental quality and to an increase in vulnerability for populations which are dependent on natural resources ( World Bank 1997 ) . While urban areas offer considerable opportunities for employment , education and social services , and contribute substantially to national GDPs , they also have their own environmental problems . It is that every human being , on account of his or her physical condition and social environment , is led to make a sort of hedonistic calculation , in other words , to measure his or her needs and the means of satisfying them . A way of life was swept away to the Indian Ocean to be drowned under masses of water . ) presciently advised " young mothers " to keep a " concise registry of their darling 's doings " in part as an aid to future medical treatment .