[□]
[□ | □]
[!□]
Common outcomes are excessive algal growth ( or algal blooms ) insurface waters , oxygen depletion , enhanced growth and dominance of some species that grow better with higher nitrogen conditions and reduced growth of others , resulting in ecosystem imbalance and a decline in species richness . 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 . Ironically a possible factor in the failure of the expedition was the indiscretion of Giuseppe Mazzini , compiler of this account , who , believing that there was no postal censorship in Britain , mailed details of the plot to another Italian revolutionary in London . The results indicated that indoor air pollution from solid fuel use is the tenth major health risk in the world in terms of potentially preventable lost life-years ( Figure 2 ) , and may be responsible for 0.8 – 2.4 million premature deaths each year worldwide ( Smith and others 2004 ) . No such studies have been carried out at the national level in developing countries , but some studies have been carried out in specific cities . Urban planning – or lack thereof – can determine how well a city manages rising energy demands from transport and industry . The table also indicates : the number of countries in each sub-region at each level of evaluation ; the number of people , on average , who live on US $ 1 a day ; and the number of people living below the national poverty line . Some cities are more services-oriented , while others may have a concentration of industries nearby , contributing to air pollution . Changes in precipitation and increased evapotranspiration could lead to further water shortages and affect water quality in some regions of the world . Declines were particularly steep in the Indomalay realm during the 1990s , as a result of intensifying destruction of lowland forests in the Sundaic lowlands of Sumatera and Kalimantan in Indonesia . 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 . Poorer countries have fewer cars , but more two - and threewheeled vehicles with dirtier two-stroke engines , and older fleets of vehicles with inefficient or badly maintained engines , and no or poorly functioning emission control devices . The proportion of the Earth 's surface affording some form of environmental protection to biodiversity continues to increase . They have also become more outward-looking and have put in place trade liberalization policies , structural reforms in agriculture , and monetary policies that aim at maintaining low inflation , a stable exchange rate , lower interest rates and fully convertible currencies . The phase-out of leaded gasoline is but a first step in developing a more comprehensive approach to management of transport-related air pollution . Investments in highly efficient , service-oriented and clean public transport followed by incentives for its use are another effective measure in controlling urban pollution . A young woman who asked for a description of her future lover might get as an answer Shakespeare 's " A sad face , a reverend carriage , a slow tongue , " and so forth . In some cases , the people who are worst affected by the negative impacts of energy-related emissions are the poorest , who have contributed the least towards them . Nobody can protect themselves from climate change unless we protect each other by building a global basis for climate security . The demographic dimensions consist of the total population and the urban population figures for Africa , and for each of its sub-regions . World Environment Day , commemorated each year on 5 June , is about you and me . Such problems often prevent valid comparisons between the current situation and what would have happened if no policy action had been taken .