Chris Horner at The Commons Blog reports that the United Nations is studying various ways of controling greenhouse gases, including a potential carbon tax, in addition to other global tax schemes that could be used to finance development. An independent source of revenue has been the dream of U.N. bureaucrats for years. An internal study on various taxing schemes will be released in September. (More here.) Of course the U.S. opposes such proposals, as do other industrialized nations like Japan, and they are unlikely to be imposed over such opposition. But, over time, such proposals can gain steam and prove hard to resist, especially as other industrialized nations (read: France) line up in support. The time to quash such ideas is now.