His best line came in answer to a question from a Thai attendee who wanted to know why Malaysia could grow palm treesrich with luxury palm oil while the same effort in Thailand produced forest fires.
Other former coffee-plantation land, high in the mountains where the soil is rich in volcanic minerals, remains overgrown with weeds and contains barren trees.
From Finse, the train descends into the valleys of western Norway, with rich green farmland and flowing rivers, masked and revealed by thick stands of pine trees that blur as the train hurtles by.