How Many Teens Are Using WhatsApp?

Feb. 20 (Bloomberg) -- Microsoft Research Principal Researcher danah boyd discusses teens use of messaging apps and social media on Bloomberg Television's "Bloomberg West." (Source: Bloomberg)
How Technology Can Help Combat Climate Change
24:35 - Christiana Figueres, executive secretary of the United Nations Framework Convention on Climate Change (UNFCCC), discusses the UN's call for investment in clean energy with Bloomberg's Cory Johnson on "Bloomberg West." (Source: Bloomberg)
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