61.   Molina said most scientists were convinced that the current global warming trend was at least partly caused by a buildup of heat-trapping greenhouse gases in the atmosphere.

62.   Meanwhile, a warming trend will move from the Plains to the upper Midwest.

63.   Much of the West will be dry with a warming trend, though showers are expected in the Northwest.

64.   Moreover, glaciologists stress that the current warming trend is still a blip on the planetary screen that could reverse itself as quickly as it came.

65.   Nationally and globally, the warming trend is smaller, as some areas of both the country and the rest of the world have cooled.

66.   Nor do scientists know the magnitude of the atmospheric concentrations before the gradual warming trend and the spike, frustrating comparisons with today.

67.   Now they can predict the phenomenon as much as a year in advance by plotting warming trends of the waters.

68.   Now, another warming trend is beginning.

69.   Once these changes are accounted for, the trend turns from a cooling to a modest warming trend.

70.   Officials said late Wednesday that they hoped a warming trend would ease the situation.