Before accepting or denying global warming as a reality, it’s helpful to understand what the absorption of heat (long wave infrared radiation) by carbon dioxide and other greenhouse gases means. The following three short videos do just that:
#1 “Greenhouse in a Beaker”
#2 “Infrared radiation absorption by CO2”
Note: The above video about infrared absorption is, also, imbedded in the following excellent video about water vapor as a greenhouse gas (at the 4 minute mark):
