The number of births for the United States last year dropped to its lowest in 32 years, according to provisional data from the National Center for Health Statistics. The total fertility rate is also at a record low.
California's Central Valley continues to grow in population even though it suffers some persistently high unemployment. The state's new governor is pushing economic development in the region, but a new report from a think tank isn't encouraging.
A dire United Nations report, based on thousands of scientific studies, concludes a million species are at risk of extinction. The dwindling number of species will not just make the world a less colorful or wondrous place, the report noted. It also poses risks to people.
Faced with growing populations, rising sea levels, and shrinking amounts of available land to build on, Singapore and other coastal cities and regions, from Hong Kong to the Netherlands, are eyeing the creation of floating marine real estate.
In the face of increasingly unsustainable urban environments, do we retrofit existing cities, or relocate and build new cities to achieve greater sustainability? The answer is both. But each has its challenges.