Finally!

My idea for manufactured arctic land masses could be feasible! (Would have to be considered international land and nature reserve to avoid property grabs)

My crack sci fi idea: If we can create a non-reactive carbon material that can be used as a skeleton lattice we could encourage ice growth in the coldest regions of the sea and create more white reflective surfaces to bounce off heat radiation from the atmosphere - dampening the heat transfer and potentially delaying warming.

Probably a terrible idea, but this is the first applied science that lends itself to the idea!