The main conclusion from this demographic work is that, barring a new increase in female labor force participation or a significant increase in the growth rate of the population, these demographic factors point towards a further decline in trend growth of employment and hours in the coming decades.

FORBES: Does An Aging Population Hurt The Economy?

If you weighed the changes in ozone by the population distribution of the U.S., you get a net increase in the death rate and hospitalization rate due to ethanol.

NPR: Study Says Ethanol Pollution Could Rival Gas

Population of children in Kenya and Uganda is rising at an alarming rate with no or very little corresponding increase in socio-economic and education facilities.

FORBES: The Numbers Behind Video Games and Gun Deaths in America

The unemployment rate actually rose, to 9.1%, in May: the rate of job creation is barely keeping track with the natural increase in the working-age population.

ECONOMIST: Barack Obama and the Republicans

The shortage of places in primary schools reflects a growth in the birth rate - with some areas facing an increase of 25% or above in the primary school population.

BBC: Education & Family