carborexic
n.— «To others they come across as “energy anorexics,” obsessing over personal carbon emissions to an unhealthy degree, the way crash dieters watch the bathroom scale.…Jay Matsueda, who might also answer to the name energy anorexic, or carborexic, has neither heat nor air-conditioning in his condominium in Culver City, California.» —“Completely unplugged, fully green” by Joanne Kaufman International Herald Tribune (Paris, France) Oct. 19, 2008. (source: Double-Tongued Dictionary)