"What Should We Be Worried About?" is the title of a new 2014 book edited by John Brockman, in which 153 scientists, professors and leading thinkers write two- and three-page essays in response to the book title.

One essay highlights an issue that will worry governments increasingly in the future. The issue is the current unsustainable expectation of infinite economic growth.

The essay title is a question: "A World Without Growth?" by financial risk expert Satyajit Das. To paraphrase, all modern societies, whether capitalist, socialist or communist, depend on continuing economic growth as a universal solution for all political, social and economic problems, which includes improving living standards and reducing poverty.

Also, growth is now expected to solve the problems over overindebted individuals, businesses and nations.

Over the past 30 years, globalization and debt-driven consumption across the planet became the tool of generating economic growth. That planetwide growth is destroying the Earth's environment and using up finite resources, especially water.

Those factors, plus unsustainable debt levels rising in all nations, threatens to end an unprecedented 200 years of growth and expansion. ...