Climate change is eating away at that most iconic of Japanese dishes - sushi. Warming water currents north of Hokkaido are driving away chum salmon, with the autumn catch at barely half the 2004 peak.

It has also reared its ugly head in other ways too. The famous sakura cherry blossoms are blooming earlier, summers are hotter, typhoons are stronger and heavy rain spells are deadlier. And climate scientists expect the impact to intensify in the coming years.