the scientific evidence." It will take years, perhaps a decade or more, before a definite climatic trend can be established with satellite data.
In the view of many scientists and most agri- cultural specialists, greenhouse warming may well be beneficial if it occurs, since crops need both warmth and carbon dioxide to flourish. Global warming would be especially welcome if, as some scientists expect, the current inter- glacial period, which began about 11,000 years ago, comes to an end relatively...