He remembered thinking it had all been over so quickly. It had, hadn’t it, come suddenly. A few years of wildly see-sawing weather, of ever rising levees and old people dying from too much heat and water shortages here and floods there, then the mad rush of an island nation for drier land. Then another. And another. The bombing that had to be done. Defences set up on coasts where all the mangroves were dying and the reefs bleached... skeletal. The enclaves where life went on in what passed as the new normal controlled by people with big guns.