The production of black market elephant ivory expanded by an estimated 66 percent following a one-time legal sale in 2008, a new study shows.
By Making Sen$e Editor
The United States and China recently committed to nearly total bans of the ivory trade, hoping to curb the poaching of elephants who are killed for their tusks. But China still remains the world's biggest ivory consumer. NewsHour's Christopher Booker…
By PBS NewsHour
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