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Fossil fuels population growth

Vegetational carbon banks would compete with agriculture for land and nutrient resources. It is estimated that a land area about the size of Alaska would need to be planted with fast-growing trees over the next 50 years to use up about half the projected fossil-fuel-induced C02 at a cost of about 250 billion or 50 per person for the global population. One problem is that once the trees are fully grown they no longer take up C02 very rapidly and would need to be cleared so new trees could be planted to continue a quicker uptake. Old trees could be used for lumber, but not fuel, since this would release the C02. If used as fuel, a delay of 50 years, (the typical growth time) would occur and move up the buildup rate of atmospheric C02. [Pg.70]

The necessity to satisfy the growth in consumption leads to an increase in the use of natural resources. Between 1960 and 1995 the global use of mineral raw materials increased by a factor of 2.5 metals 2.1, wood 2.3, and synthetic materials 5.6. This increase considerably exceeded the growth in population size, despite its extreme nonuniformity. For instance, the U.S.A. whose population constitutes about 5% of the world s consumes about one-fourth of the global resources of fossil fuel. The U.S.A.,... [Pg.491]

China alone will contribute a quarter of the increase in C02 emissions or 3.6 billion tons, bringing its total emissions to 6.7 billion tons per year in 2030. However, Chinese emissions will still be well below those of the USA. A projected increase in fossil fuel consumption is largely responsible for fast-paced growth in C02 emissions. Of the fossil fuels, coal and oil account currently for the major part of the total energy-related C02 emissions. Factors such as population growth, rising personal incomes, improved standards of living, and further industrialization are expected to have a... [Pg.76]

The concluding fifth chapter compares the energy options available to mankind. It provides quantitative data on the present trends of C02 emissions, energy consumption and population growth and on the consequences of continued reliance on exhaustible (fossil and nuclear) energy sources. I also explain why dependence on thermal nuclear energy is likely to lead to dependence on plutonium-fueled breeder reactors. The chapter calculates the costs and time needed to convert to a totally renewable energy economy and also discusses the consequences of inaction. [Pg.583]


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See also in sourсe #XX -- [ Pg.8 ]




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