[tomp]

I think the unsustainable part is increasing consumerism. From this thread I gathered that palm oil is more edficient than e.g. coconut oil. So if people drop palm oil and switch to coconut oil, the sustainability problem will get worse.

[kpwagner]

For soapmaking the efficiency difference between palm oil and coconut oil is practically the same. If you are talking about oil production efficiency, I don't know.