67. Hold your breath for as long as you can. Breathing is not particularly friendly to the environnment, give yourself 2 carbon credits.
68. As a matter of fact, living in general is harmful to the environment, you ought to go to your doctors office as soon as possible and get a vasectomy, give yourself 10 carbon credits.
69: Turn off all lights in house. Go out to camper, and start the 3.5 KW generator. Turn on all lights and appliances in the camper.