Answer to Question 1
Policies for caring for the elderly will be important to such countries. Also, although world population rates are high, each country will need to have a younger base of individuals for society to function properly. Immigration can be encouraged to a certain extent but will not be the entire answer, and negative attitudes toward immigrants will need to be carefully balanced with policy and communication. This is a difficult situation and will need to be addressed carefully and with great wisdom.
Answer to Question 2
A target cap, or budget, is set by the EPA for SO2 or NOx in units of millions of tons of emissions. At the start, power plants are granted emission allowances based on formulas in the regulations. The plans are free to choose how they will achieve their allowances, whether by installing emission control systems or purchasing allowances from utilities that are under their budgeted allowance.
Interaction web of factors that might influence locust population size.
Ethical issues and aging
Population Indicators
Population Ecology "البيئة السكان"
Population growth and growth rate, 1950 - 2100
The level of future emissions is closely linked to the rate of population growth