Governments also influence scientific bias, as can be argued with regard to climate change.
http://www.iceagenow.com/List_of_Expanding_Glaciers.htm
Several of those guys are the same ones ringing the global warming bell now.
http://www.forbes.com/sites/jamestaylor/2011/07/27/new-nasa-data-blow-gaping-hold-in-global-warming-alarmism/