Global warming demo with CO2 levels rising

Two aquariums are set up with an incandescent light inside of them to represent the sun and a thermometer dipped into the system. With dry ice placed directly around one of the bulbs the CO2 levels will rise in that aquarium. Temperature initially drops slightly due to the coldness of the CO2 but then temperature rises while CO2 is generated and the incandescent light is trapped in the aquarium. Demonstration takes approximately 20 minutes.