It was starting with a well developed planet. They built these huge arrays in the oceans, withstanding the force of the water. These are whole cities. The people escape from the old cities to the new cities in the oceans, because the old cities were endangered. The sea levels were rising, the cities close to the shores were abandoned soon. Deserts became bigger and bigger, forcing more and more people to find a new place to live, which they found in the cities they built in the water.

They thought they were safe there, having all they need for a living there, including greenhouses, seawater desalination plants etc, but all is relying on using the power of the seawater as electric power plant. Those who went there were the privileged ones, those who could afford to live there.

But why did the sea level rise? Why were the deserts getting bigger and bigger?

It was the planet's sun. The sun's dying. It's starting to become a red giant, the water of the oceans vapourised, the cities are now looking like huge towers, not fulfilling their original functions anymore. Since the sun is dying, the planet is dying as well. There are still people there, not thinking about the future, only thinking about there own survival, as long as possible. They are savaging the cities, now very difficult to enter, for anything that helps them to survive.



That's the summary of the things that came to my mind. I also thought about what life might have been before the big disaster, how was life after, and the time they realised what would happen. English is not my native language I hope it's coherent what I wrote.



Is there anything about what I wrote what you had in mind when you drew the picture?