The Guardian has a report on an unusual project around fatbergs. This is to help unblock London's waterworks, and seems to me a very good idea.
The problem at the moment is that a huge amount of cooking fats are poured down the drain. This is recognised by planners, who require restaurants to have "fat traps" to deal with the effects of high volume cooking. It is also well known to water utilities. Thames Water are concerned with below ground effects, but above ground inadequate fat treatment is often linked to rat infestation.
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