As the skies over Japan darkened with gas-guzzling planes dropping off their cargoes of Cassandras we wondered why the Kyoto global warming summiteers didn't think of doing their share by conferencing via the Internet or traveling in hot air balloons. And donating their travel savings to some good cause-say nuclear power research, which eco-obsessed groups of another era helped kill off. But by now they have all arrived, resplendent in the full regalia of the righteous international flagellant, bearing heavy tomes of murky information and wielding the statistics stick which will invariably hit the U.S. the hardest. Still, let's bear in mind that according to a recent Gallup poll only 19% of the members of the American Meteorological Society and the American Geophysical Union- -people who surely know something about the matter-- think that this century's climate change is the result of greenhouse emissions.