"As the most populous country in the world, China's demographic challenges have always been too many people for ecological system, resources, and the environment. However, by the early 1990s, fertility rate in China had dropped below the replacement level, and China's low fertility has now...

China's one-child policy is one of the largest and most controversial social engineering projects in human history. With the extreme restrictions it imposed on reproduction, the policy has altered China's demographic and social fabric in numerous fundamental ways in its nearly four decades...