Sustainable 17-04-2009
Daniel Gomez and disseminating environmental activist Cañete Also over 70% of global emissions of CO2. Surely these numbers grow if it also counted consumption and indirect emissions for urban areas that need work.
In the future, this trend is accentuated. According to the International Energy Agency, by 2030 cities will consume 73% of energy and emit 76% of CO2 emissions. For when it arrives this year, 60% of the world population will be "townie."
'By 2030 cities will consume 73% of energy and emit 76% of CO2 emissions' If we had that categoritzarles the type of energy used, we say that cities are fundamentally Electrical: 76% of the electricity consumed worldwide is consumed in cities. Today, most of the electricity produced in coal plants, natural gas and nuclear. By comparison, oil consumption in cities is low compared to total world 'only' 63% of oil consumed in urban areas, thanks to public transport and that practically no longer used in the oil generation electricity.
other hand, is in developing countries where they are giving the highest rates of urbanization. The concentration of population in cities is occurring mainly in Asia and Africa. The trend is the same all over the world, but the fact that urban development is greater in some countries provides clear opportunities to promote a less intensive in resources planning.
other hand, is in developing countries where they are giving the highest rates of urbanization. The concentration of population in cities is occurring mainly in Asia and Africa. The trend is the same all over the world, but the fact that urban development is greater in some countries provides clear opportunities to promote a less intensive in resources planning.
But just look at the developing countries. Do not forget that the highest energy consumption per capita (and also the largest CO2) occurs in industrialized countries, and in these, the average consumption in cities is only slightly lower than in rural areas.
Ideally, the major urban areas of rich countries should follow a diet very energy-saving, efficiency and renewable energy. This not only involves a substitution of energy technologies, but by a redefinition of uses in the area that contributes to decreased dependence on energy and materials in large cities. Some have already started this thread the needle.
'large urban areas of rich countries should follow a diet very energy-saving, efficiency and renewables' New York presented his NYC Plan, which aims to reduce energy consumption by 30% over the next 10 years and to prepare a possible rise in sea level due to climate change. London also has its own, The London Plan, in order to reduce energy consumption, increased penetration of renewables, prioritizing efficiency, rehabilitation of areas and homes, and the eradication of energy poverty (which also exists in the first world). Other cities, like Portland, also include peak oil in its list of environmental concerns, and plans are considered more ambitious and wide as a 50% reduction in energy consumption or the pursuit of "community cohesion" as a pillar of urban sustainability.
The greatest obstacle to convert the progressive urbanization of the world population in an improvement of sustainability is our growth model. In China, the city dwellers consume almost twice the energy in rural areas (and yet per capita consumption of a Chinese child is three times that of a European). Ideally urbanized with sustainability, minimizing the need for mobility and the transfer of materials and building homes that produce negavats. But beyond anecdotal projects, are looking at the mirror in which people in developing countries? Probably to get in sooner, and at any price, to material well-being that we have enjoyed hitherto rich countries.
The greatest obstacle to convert the progressive urbanization of the world population in an improvement of sustainability is our growth model. In China, the city dwellers consume almost twice the energy in rural areas (and yet per capita consumption of a Chinese child is three times that of a European). Ideally urbanized with sustainability, minimizing the need for mobility and the transfer of materials and building homes that produce negavats. But beyond anecdotal projects, are looking at the mirror in which people in developing countries? Probably to get in sooner, and at any price, to material well-being that we have enjoyed hitherto rich countries.
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