PACOM recently identified climate-change caused disruption as the biggest destabilising force of the near future.
For what it’s worth, Herald of War thinks the Admiral is right on the money. The South Asian coastline from India around to China is home to around a billion people, and large parts of it are in danger of inundation as sea levels rise. And their higher-land neighbours are not always willing to make room – Indian border guards regularly shoot Bangladeshis trying to cross illegally. (Bangladesh has 110 million inhabitants, and a lot of the country is less than ten metres above sea level.)
And that’s without mentioning the many Indian and Pacific Ocean island states in danger of washing away, or being blown away by ever-more-frequent extreme weather.
Shades of Kevin Costner’s search for “Driland”? But for real this time.