On the assumption we will lose our polar ice caps, could this in any way affect the rotation of our earth? I imagine the weight of all that ice above and just below water level has some balancing effect. I'm thinking also that for every cubic metre of ice we lose from the polar ice caps we must remove a cubic metre of rock or sand from the ocean and put it above ground. Theoretically the problem of rising sea levels we are facing would be solved, albeit not in an ideal way, and only employung the practice for as long as it takes us to reduce our greenhouse gas emissions to virtually zero. I would suggest depositing the first amount of earth to the islands that have recently found themselves being swallowed by the sea. If we were really cool we would make sure the deposited earth is in part rich with lithium and rare earths and gold to help them out financially given what our industrial development did to their land. Now obviously, if the rich nations of the world tap into their treasuries and mine the sea bed an annual amount equal to the annual volume of lost polar ice, they can't be allowed to destroy important habitats. So maybe it has to be a mix of deep sea sand, rock and pegamites bearing spodumene. Rock in particular could also be used to replace land lost to erosion by building sea walls and reclaiming land (eg. West coast of England) I wonder if a band aid and temporary fix for our melting ice caps might be a fleet of automated wind turbine powered mobile desalination plants strategically positioned at the poles producing replacement ice on an industrial scale. Snow makers could help also.
