According to Ehow, the origin of “carbon footprint” came from the term “ecological footprint” which refers to the human consumption of natural resources. Ecological footprint was first used by Matthis Wackernagel and William Rees in 1990 during a Ph.D study at the University of British Columbia.
The term “carbon footprint” is a actually subset of the more broad term “ecological footprint”, coined by William Rees in 1992. The concept was originally called “appropriated carrying capacity” before Rees became inspired by a computer technician’s idea of his computer’s “small footprint on the desk.” The ecological footprint measures humanity’s demand on nature – how fast resources are consumed and the waste generated from it. A carbon footrprint refers to the measure of greenhouse gases.
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