Planetquake: The year the rainbow broke

This is 'geofiction' cli-fi where our planet is a key actor. Greenhouse gases lead to natural disasters and the dismal politics of scarcity. Yes, our world is groaning, symbolised by a tsunami hitting the Scottish holy island of Iona... A scientist couple begin an evidence-based protest, but this morphs into a fight against a charismatic African empire-builder even as they face their own private temptations and tragedies. Nobody taught them just how difficult this path would be nor how much the whole world would become their battleground.