Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic. Those that are man-made include the chlorofluorocarbons (CFCs) , hydrofluorocarbons (HFCs) and Perfluorocarbons (PFCs), as well as sulfur hexafluoride (SF 6).s a greenhouse gas, the higher concentration of water vapor is then able to absorb more thermal IR energy radiated from the Earth, thus further warming the atmosphere. The warmer atmosphere can then hold more water vapor and so on and so on. This is referred to as a 'positive feedback loop'.
When it comes to pop-culture allure and romanticized brutality, Stanley Kubrickâs âFull Metal Jacketâ is arguably the most influential of all Vietnam War movies. R. Lee Ermeyâs iconic portrayal of the sadistic Gunnery Sgt. Hartman has served as a de facto recruiting mechanism for the Marines since the filmâs release in 1987.
1 Full Metal Jacket is arguably the Trope Codifier with its infamous line Me love you long time (see the page pic). 2  The second half of the movie takes place in Vietnam, yet the hooker saying this and a few more lines still constitute the majority of Vietnamese characters' dialogue.