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These are generally conservative estimates , as they monetize only some of the benefits of improved human health . Shown here on a " sub-island " are several engravings pertaining to the events taking place around Rome during that time . Some key issues to consider in the formulation of scenarios include : the boundary ; the current state ; the definition and determination of driving forces ; the narrative , or storyline ; and images of the future . The frontispiece of the 1798 edition has been touched up , and we have a Burns who looks quite different to the one of 1793 . Each system offers food production benefits but also has the potential to create environmental damage – both of which can be improved through effective policy responses . World Environment Day , commemorated each year on 5 June , is about you and me . This copy of Ode alla nazione Serba ( " Ode to the Serb Nation " ) , written at the time of the Austrian / German invasion of Serbia during the Great War , is inscribed by D'Annunzio , with typical panache , to Garibaldi 's grandson and namesake Peppino . The demographic dimensions consist of the total population and the urban population figures for Africa , and for each of its sub-regions . Of particular interest among Miss Barnwell 's books was this first edition , in the original binding , of a pseudonymous book by America 's first major novelist , James Fenimore Cooper , better known for such frontier adventure stories as The Last of the Mohicans . Table 5.2 shows that many countries have improved their daily per capita calorie intake , although some sub-Saharan countries have done the opposite . This is because most countries in Africa over the past 30 years have been at high risk of , for example , floods , earthquakes , lava flows , fires , droughts , civil strife , and armed conflicts and wars , which have increased poverty , exacerbated serious health problems and resulted in hunger . " A game could also be made of guessing the author of each quotation . Severe water problems may affect three billion people globally by 2015 , and this would encourage mass migrations . Extreme weather events and new research and data were so dramatic that the year may prove a turning point in the urgency of our awareness and response . In some countries , the health policies introduced have emphasized preventive rather than curative strategies . Each year we include a range of available indicators , particularly including any that have been updated or which shed new light on key trends . " The account concludes : " His execution excited a feeling of horror all over Italy . For example , many African countries in arid and semi-arid areas depend on food aid during some parts of the year . Increasing human vulnerability due to environmental change is a threat to sustainable social , economic and environmental development . The main international celebrations of the World Environment Day will be held in the City of Shenzhen and UNEP is honoured that the People 's Republic of China will be hosting this important United Nations day . Cataloging has started at the two ends of the collection - -17 th century editions , and modern scholarship .