You confused me and possibly others with this post showing 2 charts. The assumption would be that you are linking rising CO2 to the falling death toll from natural disasters.
They were still primitive compared to modern ships, as were their navigational aids.
Of course they were cutting edge in their time and if we survive as a species and also manage to evolve further then what we have today will appear primitive by comparison.
Perhaps I could have chosen a better word that didn't belittle past achievements? I didn't mean to do that. My favourite books are historical novels.
