Living Planet Report 2008."Goal 1: No poverty"."Human Population: The Next Half Century." In Kennedy.

85 Long-term estimates in 2004 of global population suggest a peak at around 2070 of nine to ten billion people, and then a slow decrease.4 billion by 2100.To reduce waste, industry, business and government are now mimicking nature by turning the waste produced by industrial metabolism into resource.Sustainability skills and environmental awareness is a priority in many corporate jobs at graduate level and over as businesses seek to adhere to new legislation.

Modern sanitation systems and advances in medicine protected large populations from disease.McElroy, Mark; van Engelen, Jo (2012).This suggested a more complex figure of sustainability, which included the importance of the domain of 'politics'.