61.   Greenhouse gases are mostly carbon dioxide and other pollutants that are released with the burning of fossil fuels such as coal and oil.

62.   Hansen has long been a firm adherent of the view that greenhouse gases are the major cause of the observed warming.

63.   He also notes that just a year ago, gas was at its cheapest for years.

64.   He also said the sturdy cars are popular as taxicabs in Kuwait and Saudi Arabia, where gas is cheap and roads are often covered in sand.

65.   He elected not to choose a means of execution, after the warden told him that lethal gas was a quick and painless way to die.

66.   Here, self-service gas is against the law.

67.   His pantry will be packed, and there will be extra gas to run a back-up generator.

68.   However, gas is unlike most commodities, for it is difficult to handle and costly to store and transport.

69.   Hydrogen cyanide gas is colorless and has a faint, bitter, almond-like odor.

70.   How much gas is likely to erupt?