We all know the story: Americans are overweight and that costs us a lot as a country, in health care spending... and other ways.
But a new study has discovered our "obesity epidemic" may be doing harm to other countries -- and in fact, the future of the planet.
It found that if other countries begin to be as overweight as Americans, that could soon be the equivalent of having an extra billion people on Earth.
Jeff Horwich is the interim host of Marketplace Morning Report and a sometime-Marketplace reporter. He is the former host of "In The Loop" from Minnesota Public Radio and a former business and economics correspondent for MPR. He is a graduate of Duke University and has a Master's in applied...