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It is important to note that people in all regions in the world are vulnerable in one way or another to environmental change , but that their coping capacity is different . Also displayed in this case are books from the Phillips ' gift from other members of the family , including her two sons , along with some unsigned items from the collection that round out the picture it gives of women 's reading in the mid-nineteenth century . It has a positive fertilizing effect on some crops , known as C3 crops . Cataloging has started at the two ends of the collection - -17 th century editions , and modern scholarship . In any circumstances in Africa for now , the scenario of low coping capacities exists . Some macroeconomic policies have had negative effects , exacerbating poverty instead of reducing it . Some 50 carefully selected motorcyclists were kitted out with branded T-shirts and caps . For development to be sustainable , the stock of national capital at any given time in the future must be greater than the current amount . Investments in highly efficient , service-oriented and clean public transport followed by incentives for its use are another effective measure in controlling urban pollution . Focusing on poetry by women from the fifteenth century to the mid-nineteenth , the editor claims to " supply a want which must have been frequently experienced by every student of our literary annals . In both the US EPA and Santiago studies , the cost-benefit ratios were remarkably similar : the benefits were six times higher than the costs . Poverty severely impedes recovery from these events , and weakens social and ecological resistance , especially as the poor are unable or do not have the opportunity to invest in natural resource management . This certainly calls for support at global level , but the responsibility is that of governments , through the necessary political will and commitment , and in cooperation with their subregional and regional organizations . She observes that this is " an extraordinary result for any private collection . Studies in India and China , for example , show that the percentage of fuel carbon fully burned to carbon dioxide is typically only 90 per cent , with some fuel / stove combinations only achieving 80 per cent . Another is that some products of incomplete combustion – particularly methane and black carbon particles – are even more powerful greenhouse pollutants than carbon dioxide , and therefore have higher global warming potential . There are now over 117 000 protected areas worldwide , taking into account both those classified under any of the six IUCN management categories I to VI ( see below ) , and those not classified . Desertification is another serious concern in Africa , particularly in the more arid zones where climate variability and poor land management practices combine to threaten the sustained productivity of soil and vegetation . The prolific Sedgwick was the first of the " literary domestics , " American women novelists of the mid-nineteenth century who also included Fanny Fern , Lydia Maria Child , and Maria Susanna Cummins .