Environment: The World's Climate: Unpredictable

Everybody talks about the weather, but nobody can do much about it even today. Short-range forecasting has improved enormously in recent years, even though squalls occur on days when the weatherman insists the precipitation probability is near zero. And despite great advances in techniques and technology, the discipline of climatology—the study of long-range trends in weather—is still an inexact science, to say the least. Climatologists still disagree on whether earth's long-range outlook is another ice age, which could bring mass starvation and fuel shortages, or a warming trend, which could melt the polar...