Living Planet: Climate challengesTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoCharlotta Lomas10/23/2014October 23, 2014Why Peru’s Environment Minister Manuel Pulgar-Vidal is optimistic a climate agreement will be reached -- what happens when green sludge invades America's great lakes -- and Greenpeace challenges Lego through brandjacking.https://p.dw.com/p/1Db1gAdvertisement