While products are generally thought of as tangible personal property, products liability has stretched that definition to include intangibles (gas), naturals (pets), real estate (house), and writings (navigational charts).
According to the US Census Bureau's population clock, the estimated 2018 United States population (February 2018) is 327.16 million. This is a bit higher than the 326.77 million estimated by the United Nations.
The United Nations estimates that the world population at the end of the century will be around 11 billion, and many fear that the planet's natural resources are insufficient to accommodate such growth. [ See a collection of political cartoons on defense spending. ]. Weisman is one of them.