Washington Post: As the Bush administration prepares to issue its ruling on whether to limit greenhouse gases, it’s sending out a message to some of its allies: Tell us how much you don’t want us to regulate emissions linked to global warming. Last week, the White House Office of Intergovernmental Affairs sent an e-mail to mayors reminding them that time was running out if they wanted to comment on the proposal the administration issued in July, which laid out how the government might curb greenhouse …