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This was clearly demonstrated in 2005 - for several regions of the world where the impact of diverse natural disasters were worsened because environmental buffers had been previously removed . The coins , medals and decorations range from 1849 to the 1960 's . The bishop had a copy of the Edinburgh edition of Burns 's poems bound with several blank leaves at the front and back of the volume before returning it to the poet . Burns wrote several poems on the blank leaves , making the volume one of the most desirable of Burns items . This volume , an epistolary work which , like Cooper 's , includes observations on travels in the Alps and in Italy , was published as " by the author of ' Hope Leslie , ' ' The Poor Rich Man and the Rich Poor Man , ' ' Live and Let Live , ' etc. " Perhaps Angelica 's taste in fiction , or reading tastes generally , grew more moralistic in mid-century . Chapter 2 describes the current state of the environment in Africa , outlining its physical attributes in terms of : the atmosphere ; land ; biodiversity ; forests ; freshwater , marine and coastal areas ; and the urban environment . Since the majority of these resources and services have not been quantified in monetary terms , they are often undervalued and threatened by overexploitation . It is presented in the form of letters to friends from the author 's travels , commenting obliquely on the danger to America of imitating Europe . Although awareness has been growing , indoor air pollution from household solid fuel use has not been a major issue on the global agenda in terms of international , bilateral , or national development assistance . However , population growth and rural-to-urban migrations have increased steadily , particularly in developing countries , placing enormous pressures on urban infrastructure and services , both in terms of provision and maintenance .