From the NYT, the Bush administration takes climate change denial and quashing of internal discussion to a new low:

"Internal memorandums circulated in the Alaskan division of the Federal Fish and Wildlife Service appear to require government biologists or other employees traveling in countries around the Arctic not to discuss climate change, polar bears or sea ice if they are not designated to do so."

 The memo is a response to an ongoing suit by environmental groups, pressing the administration to list polar bears as threatened (due to receding sea ice), apparently as leverage towards getting emissions-related regulations put in place.