Weatherlawyer wrote
Rod Speed wrote

so the price goes up. At 1.50 a litre there's no point using it as
fuel, and so there's some left on the shelf to fry our chips instead.

Doesnt explain why that hasnt happened to the price world wide.

They have to erase hundreds of square miles of rain forest to keep up with the demand.

**** all of the cooking oil used in britain comes from recnetly ex rain forest areas.

The problem with that is well known: Until the geography
can react by producing drought, the soil is washed away
in the wet season and the land become unproductive.

Not with where much if any of the cooking oil used in britain comes from.

Fortunately, nobody ever went broke forest stripping.

Some have done in fact.

And there is still some left.