81.   While some scientists have questioned whether global warming is a serious enough problem to justify costly policy moves now, there is broad scientific agreement that some problem exists.

82.   Why would global warming be more likely to prompt action, they ask?

83.   Yet some people argue that global warming is a myth, and that temperature readings from satellites actually show a slight cooling.

84.   Yet, outside Congress, the international science community increasingly agrees that global warming is both real and worrisome.

85.   Other scientists argue that the warming is due to natural causes.

86.   Americans are undecided about cloning farm animals, dismiss the notion that some numbers are lucky and believe global warming is a serious problem.

87.   But global warming is likely to have serious consequences for millions of people in the South, where harvests could become more unpredictable.

88.   But global warming has been the most contentious issue.

89.   For malnourished people in these areas, global warming could be the last thing they need.

90.   Global warming is an example.