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
Family in the Soviet Union 75 rubles per month in some northern and eastern regions). The subsidy amounted to 12 rubles per month for each child below eight years of age. It was estimated that in 1974 about 3.5 million families (14 million people, or about 5% of the entire population) received this subsidy. With the increase in per-capita income, however, the number of children requiring such assistance decreased. In 1985 the government raised the age limit for assistance to twelve years and under. In 1981 the subsidy to an unwed mother with a child increased to 20 rubles per month; in early 1987 an