Fuminori Arita once farmed iyokan, a Japanese citrus variety, but about 10 years ago he switched to growing avocados, revelling in the challenge of producing crops of what he describes as a “sensitive and difficult to grow” fruit. The 67-year-old is symbolic of efforts by the western Japanese city of Matsuyama in Ehime prefecture, long known primarily for citrus cultivation, to shift more to avocados, partly as a strategy to adapt to rising temperatures amid climate change. Given the challenge..