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
European countries by health expense per person European countries by health expense per person This is a list of total public and private health expenditure for European countries, divided by the population of the country to give expenditure per capita. It includes health services, family planning, nutrition activities, and emergency health aid. The table uses 2013 data from the World Bank. Numbers are in international dollars. The table uses an interval of years from the World Bank. Numbers are in international dollars. The following list transcontinental countries that have main territories in Asia with small territories in Europe. The table uses an interval of years from the