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31. This ensures that production costs of electricity generated by these methods are no greater than for fossil fuels.

32. The speed with which this will occur depends primarily upon the speed at which the prices of conventional fuels rise.

33. Nor do they contribute to environmental pollution by burning fossil fuels.

34. Then there's even more pollution caused by burning the fuels needed to generate the energy to make new products.

35. Thus the company is uniquely placed to sum up current interest in alternative fuels for diesel and petrol engines.

36. Secondly, new fuels for the internal combustion engine which do not involve the depletion of vital and limited energy resources.

37. Suprex has introduced the Aromatic Analyser which determines the aromatic content of petroleum fuels.

38. After all, your editorial on fossil fuels, fearlessly and correctly reported global warming data in degrees Celsius.

39. Independent tests have proved that Shell Advanced petrol will keep your engine three hundred percent cleaner than ordinary fuels.

40. As for replacement fuels, many people do not like to contemplate the nuclear option.

41. Close-up of brief case reveals a Nuclear Fuels logo on it. Sentencedict.com

42. Their wastes include solvents, fuels, mine tailings, radioactive wastes, and unexploded bombs and shells.

43. The problem with fossil fuels is that they are not renewable.

44. They have also shown that 60 percent of the energy released from fossil fuels is wasted.

45. Mr Livingstone has offered exemptions for business deliveries and if vehicles use green fuels.

46. Yet the real energy gain in fuels does not come from burning the carbon component of hydrocarbons, but the hydrogen portion.

47. By providing reliable information on military activity, satellite surveillance could cut out the uncertainty which fuels arms spending.

48. Currently an estimated 1,600 vessels carrying fuels and other hazardous materials pass through the strait annually.

49. Another large reservoir of fossil fuels, solid gas hydrates, has recently come to public recognition.

50. And they produce oxygen which animals need to breathe, and which helps to replace that lost by burning fossil fuels.

51. The government on June 3 liberalized the prices of liquid fuels, producing price increases of between 70 and 113 percent.

52. On Earth, nitrogen is an important ingredient of both storable rocket fuels and oxidizers.

53. Eventually, however, the star will run out of its hydrogen and other nuclear fuels.

54. Gas usage will increase particularly in the home-heating sectors and in industries requiring clean fuels.

55. Hasn't he any conception of the devastation caused to this planet by burning fossil fuels?

56. The key to manufacture of storable fuels on Mars lies in the use of water-bearing surface materials, not atmospheric water vapor.

57. The estimated global emissions of carbon from fossil fuels alone have tripled since 1950.

58. As it loses the heat that fuels its steady churning, the plate motions on the surface are slowly winding down.

59. That theory fuels the $ 75 million to $ 100 million in annual sales of beta carotene supplements.

60. Liberalization and the introduction of competition intensify the split between winners and losers among electricity technologies and fuels according to environmental criteria.