Green Matter: If you talk the green talk better walk the green walkGreen Matter: If you talk the green talk better walk the green walk

Berlin—Bio-based plastics are better for the environment - they say. So who's 'they'? And where's the data?The need for credible references for sustainability claims was an issue that kept coming back in many of the presentations held at the recent 6th European Bioplastics conference in Berlin  - if only, as one of the speakers pointed out, because the sheer cost of bioplastics makes this crucial.