Board Thread:Questions and Answers/@comment-98.82.191.68-20130407012032/@comment-251103-20130417224908

Maybe it's  from a Kraang spaceship. A damaged power cell could produce mutagen like old dynamite sweating beads of pure nitro. The Kraang might be melting down used fuel cells to produce enough goop to blanket the earth. It might not take many, either--look at the punch even a small one packs.