[JeromeLon]

The yield per hectare of palm oil is 5 times higher than the next most productive edible oil crop (rapeseed).

Note that there is nothing wrong with palm oil itself, it's just that the cheapest way to produce edible oil on Earth, is to grow palm oil trees in a tropical climate. Replace palm oil with another vegetable oil, and the effect on deforestation will be even worse, as we would need even more land to grow the replacement. Even Greenpeace is not calling for a boycott or palm oil.

[paganel]

Presumably 1 ha of tropical forrest > 1 ha of temperate-climate forrest, that is if the replacing crop would be a temperate-climate one.