
www.pri.org
In 12 years, the world has added 1 billion people. On Monday, the United Nations expects the global population to top 7 billion for the first time, ever.

www.pri.org
A Yale economist's research shows that if you speak a language that, grammatically speaking, treats the present tense and future tense the same way, unlike English, you'll save vastly more more money over the course of your life.
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