By the time it ended, the Copenhagen climate summit had become farcical enough to obscure an instructive disclosure that emerged in the confab's early days. At this writing, quarrelling summiteers were straining to assemble some token agreement that would keep their effort from looking like more than an international contest for other people's money.Not even Nobel Laureate Barack Obama, who took time off from his healthcare fiasco in the US to prod international leaders into valiant combat against climate variation, could rescue the moment.Glaciers, therefore, seem destined to continue melting, which they were going to do no matter what happened in Copenhagen. A greater hazard to human we...