Lee, Yung-Jaan; Peng, Li-Pei - In: Sustainability 6 (2014) 9, pp. 6170-6187
According to the 2011 edition of the National Footprint Accounts (NFA) published by the Global Footprint Network (GFN), humankind consumed the resources and services of 1.5 planets in 2008; the corresponding number in 1961 was 0.7 planets. North Americans have an ecological footprint of 8.7 global...