Population Growth

With a growth rate of more than 75% over the last seven years, Kendall County, Illinois, is changing fast and the local farming community is struggling to adapt.

The small Arkansas town of El Dorado has experienced an economic rebirth since an oil company offered to pay college tuition and fees for all graduating high school seniors.

The mega cities of the developing world are expected to experience increasing rates of growth in the coming decades. The growth in population will be a challenge, but so will be dealing with the increase in air pollution.

Growth and rising populations have many Western states reconsidering dams.

The city of Melbourne, Australia, is on track to surpass Sydney as the country's most populated. But the expected population growth may push the city into a sprawling and unsustainable future.