After my little update yesterday to a previous article I've found another that could do with bringing up to date. 11 years ago (yes, really) I wrote a tongue in cheek post about how much biodiesel we could get from liposuction of obese people.
The prevalence of obesity in the population of the UK is still about 25%, but the population itself is much higher at 67 million. So there are 16.75 million obese people in the UK. Also you may have noticed that the cost of diesel is much higher than it was in 2011.
So assuming as before a yield of three litres of fat per liposucked patient, and a 90% yield of this to biodiesel we could end up with 45 million litres of fuel, worth, at present prices £90,000,000. Not bad. And we could increase that enormously by flensing dead fat people.
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