Konsep 3 R (reuse, reduce, recycle).
http://id.news.yahoo.com/antr/20110301/tpl-menteri-lh-peringati-hari-peduli-sam-cc08abe.html

30 Persen Perusahaan Langgar Aturan Pengolahan Limbah

http://id.news.yahoo.com/antr/20110301/tpl-30-persen-perusahaan-langgar-aturan-cc08abe.html