The Bush administration has put on its green hat leading up to Earth Day. President Bush has said he would sign a treaty phasing out a series of nasty chemicals and not roll back a couple of environmental rules approved by former President Clinton. U.S. EPA Administrator Christie Todd Whitman has been making the rounds with reporters, saying things like, “This administration has an extraordinarily good environmental record.” Bush allies seemed to understand that the president needed a green sheen this week. Bill Kovacs of the U.S. Chamber of Commerce said Bush’s decisions “were not on issues that we were fighting with Clinton on anyway.” So far, the administration has rejected or delayed about four times as many enviro measures as it has approved.