In 2009 the Supreme court ruled that CO2 counts as an air pollutant so should be regulated by the EPA. What factors helped lead the supreme court to this decision?

a. CO2 acidifies the oceans
b. CO2 is warming the atmosphere
c. CO2 has a direct impact on human health
d. a and b
e. a, b and c

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare