Beth Mole writing for Ars Technica:
The rancid refuse was chipped off an infamous sewer clog discovered in London late last year called the Whitechapel “Fatberg”—the preferred term for such muck monsters. The complete clog clocked in as an epic 250-meter-long, 130-metric ton mass of congealed excrement and waste, thought to be one of the largest—if not the largest—fatbergs ever identified. Authorities found it blocking a Victorian-era sewer line in the eastern Whitechapel area of the city. They spent nine long weeks in a subterranean war, hacking and blasting away the hardened blob of feces, fats, wet wipes, and various other detritus.