A barge can be built with the equipment powered by sun, wind and waves to spray the water. Such a barge could be built for under 1 million. 190 of them for 190 million.
The other 8.81 billion is to pay off the concerned activists, most, but not all, of whom can be bought off.
A side benefit to spray is that more water will evaporate into the atmosphere. If these are located upwind from deserts, there will be more humidity, and more rain on the dry areas. That will cause more vegetation to suck up more CO2.
An alternative is to shoot reflective confetti into orbit. It could be selectively located to cool the polar regions or wherever.
“...that more water will evaporate into the atmosphere.”
Water vapor contributes about 95% of the greenhouse effect.
Water vapor is almost entirely from natural sources (99+%)
And I like your reflective confetti idea. As long as it is biodegradable. Back in the 70’s when everybody was worried about global cooling, some “experts” thought it would be a good idea to cover the ice cap with coal dust and oil to absorb the heat from the sun to keep the earth warmer.
Thank goodness they didn’t do that!
If I can get the barge equipment maintenance contract and travel the world keeping the barges functioning, you’ve got my support. Just make sure that all 190 barges are placed in lovely destinations with beautiful beaches nearby.