By editor
Originally published on Wed June 20, 2012 7:08 am
Transcript
LINDA WERTHEIMER, HOST:
Now, for a global perspective on our national weight problem. The number of humans on the planet is now more than seven billion. And our total weight is 287 million tons. That number comes from a new study that suggests weight, and not just headcount, should be considered when looking at the impact of people on the planet.
RENEE MONTAGNE, HOST:
To find out more, we called Ian Roberts. He's a professor at the London School of Hygiene & Tropical Medicine, and is the lead author of this study.
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