I = PAT that human population may stabilize at around 11.2 billion in 2100, the I=PAT equation will continue to be relevant for the increasing human impact on the environment in the short to mid-term future. Increased population increases humans' environmental impact in many ways, which include but are not limited to: The variable A, in the I=PAT equation stands for affluence. It represents the average consumption of each person in the population. As the consumption of each person increases, the total environmental impact increases as well. A common proxy for measuring consumption is through GDP per capita. While GDP per capita measures
Employment-to-population ratio worker, are self-employed and also held a wage and salary job, or work as an unpaid family worker and also hold a wage and salary job. The ratio is used to evaluate the ability of the economy to create jobs and therefore is used in conjunction with the unemployment rate for a general evaluation of the labour market stance. Having a high ratio means that an important proportion of the population in working age is employed, which in general will have positive effects on the GDP per capita. Nevertheless, the ratio does not give an indication of working conditions, number