You wouldn't be able to visualize the impact of global warming with this data/representation. Global warming is roughly 1 degree celcius over the past couple hundred years, as a global average. This visualization only shows temperatures in 6 degree increments in specific locations. The historical data in many locations probably isn't even enough to capture that 1 degree average change, and there would be so much noise from "random" variations in local climates that there would be no way to accurately draw any conclusions from such a visual representation. If you want to see visualizations of the impact of global warming, I'd recommend the visualizations based on research-backed models on https://picturing.climatecentral.org/
Neat, but those visualizations seem like an unrealistic exaggeration for dramatic effect. I would assume that people would generally respond in some way to large scale flooding as they've done in the past, whether building levies or creating artificial land & rebuilding on top to try to stem the problem. Certainly an expensive endeavor that'll continue to create drastic inequalities across the globe & it'll create a lot of humanitarian crises, but it would genuinely surprise me that 10 years from now Google Earth images will actually look similar to these predictions even if we don't change our path.
I think the better way to message this is "here's the cost of what it'll cost your government to keep this city running over the next 10 years/here's how much money you'll lose if you don't start getting ready".
