'Merchants' of Doubt Raises Curtain on Global Warming Acrimony

April 03, 2015 05:16 PM
Embed
This program will begin at
This program has ended and is being processed for playback.

'Merchants of Doubt' is Robert Kenner's latest documentary on climate change skeptics who, it contends, sow doubt and confusion about the science on global warming because they have an agenda against action on climate change. VOA's Penelope Poulou reports.