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61. Propane-rich fuels come mainly from oil extraction and refining, and can be burnt either in spark-ignition motors or dual-fuel units.

62. Revenues, from reprocessing domestic and imported nuclear fuels, are not expected to exceed ￡5.2 billion.

63. Typically, the fuels are isotopes of the three lightest elements, hydrogen, helium, and lithium.

64. These will all reduce emissions from fossil fuels and so help combat global warming and acid deposition.

65. Geothermal energy does not involve the burning of fossil fuels and therefore makes a negligible contribution to global warming.

66. Moreover, countries should price fuels to reflect their full costs, including environmental costs.

67. But all fossil fuels, especially the cleanest anthracite, burn to produce abundant carbon dioxide.

68. Alternative Energy Sources One of the major problems of fossil fuels and particularly coal is pollution.

69. The company is a major supplier of marine fuels in the port of Aberdeen.

70. The main global-warming gas, after all, is carbon dioxide, given off mainly by burning fossil fuels.

71. While this step awaits technical advances, cleaner fuels for cars and lorries, such as methanol,(www.Sentencedict.com) are urged for immediate use.

72. The plant will initially reprocess irradiated fuels from the country's five existing nuclear power plants.

73. Gerald Foley and Geoffrey Barnard argue that the only proven fuels are wood and charcoal for the current gasifier technology.

74. They are also increasing their rate of consumption of non-renewable resources in the form of fossil fuels.

75. It also acted as the catalyst to form fossil fuels from tiny animals millions of years ago.

76. If these products replace those derived from fossil fuels, it will make a significant contribution to reducing the greenhouse effect.

77. Bottom right: melting snow from the peaks fuels the rapids.

78. And it provides a useful explanation for the power house that fuels certain cosmic sources.

79. Measured on the carbon dioxide scale, it emitted 2.109 metric tons percapita in 1986 from fossil fuels and cement production.

80. Background A tax on carbon-producing fuels such as coal, gas and oil has been proposed to help counter the greenhouse effect.

81. The first is to increase production through new discoveries - the second is to encourage alternative fuels.

82. From graffiti to fanzines to indie-pop, that is the glue which fuels most real youth enterprise.

83. How important is land use compared with deposition of strong acids derived from the combustion of fossil fuels?

84. This latter involves the production of food energy and fuel energy which can supplement animal feedstocks and fossil fuels respectively.

85. Failure to correct them only fuels the right-wing demands that obliterate the very protections that liberals cherish.

86. The carbon tax could lead to a doubling of prices for fossil fuels.

87. However, it has not yet been established that global warming is due to excessive combustion of fossil fuels.

88. The industrial use of oil, 3. 4in, constitutes an even more tempting alternative fuels target.

89. Guilt is just as powerful, but its influence is positive, while shame's is destructive. Shame erodes our courage and fuels disengagement. Brene Brown 

90. For instance aluminium costs 95% less in energy when recycles which cuts down the use of fossil fuels and reduces pollution.