While cutting down rainforests to grow palm oil for biofuels may constitute "madness" (1 December 2007, p 50), burning other vegetable oils is no more sane, nor less damaging to Indonesia's rainforests. Indonesia is expected to increase its palm oil production by more than half over the next 10 years. This is driven, in part, by China, which used to buy rapeseed oil from Europe for food and for industrial uses, but is switching to Indonesian palm oil because Europe's cars and trucks now burn the rapeseed oil as a biofuel.