If "waste" fats/oils/greases--with existing GHG-unregulated markets (e.g., soaps, lubes)--are used for biofuel, what ends up supplying those markets?

Text snapshots from relevant blogs & white papers: http://www.biofuelsdigest.com/bdigest/2016/04/10/could-renewable-diesels-boom-be-cut-short-by-feedstock-access-and-availability/ New supplies...

05 May 2017 5,313 2 View