There has been an unwritten rule among U.S. federal agencies (especially during the Obama years) that no “science” which disagrees with the prevailing message of manmade-global-warming-by-CO2 hysteria is allowed to be published by the government.
So a U.S. Forest Service researcher was forced to publish his countervailing climate research under alias names. He observed that planetary temperature correlates with sunlight and atmospheric pressure, not atmospheric composition.
The Washington Post reported on the story and turned it into a scandal about a government scientist using aliases.
Tony Heller of realclimatescience.com says that climate science has now reverted to 16th-century levels.