Plastic

Yes plastic is a big environmental problem. However, it is one channel where the oil we take out of the ground gets fixed as a hydrocarbon and never becomes a greenhouse gas.

http://www.designnews.com/materials-assembly/how-engineers-and-product-designers-can-help-keep-plastic-out-ocean/163088289545506?cid=nl.x.dn14.edt.aud.dn.20161118.tst004c