Billionaires Reach for the Stars While World Suffers

With all due respect to Jeff Bezos and other billionaires who plan to spend billions of dollars of their personal wealth on space travel, hundreds of millions of children who lack access to basic health care and schooling more urgently need help right here on Earth. …Jeffrey Sachs is a professor and director of the Center for Sustainable Development at Columbia University. The opinions expressed in this commentary are those of the author; view more opinion articles on CNN.