71.   The average warming is merely the engine that will drive other changes.

72.   The CW has decided that global warming has been oversold.

73.   The new policy is also attracting support from scientists who are skeptical that global warming is a serious long-term threat.

74.   The only explanation, said the Economist, is that the scientists polled by Bush convinced him global warming is a problem caused by man.

75.   The organizers of the Buenos Aires conference take it for granted, of course, that global warming is real.

76.   The time has come to accept that global warming is a credible enough threat to require a public-policy response.

77.   The warming is likely to keep shipping lanes in Alaska and the Great Lakes free of ice for longer periods, easing the movement of oil and other goods.

78.   The warming is greater at night and in the winter.

79.   Unlike polluted air and contaminated water, global warming is not a local problem that can be seen or felt.

80.   Whether the warming is also modifying the El Nino-La Nina cycle in some way is an open question.