white paint in the oceans?

Inspiration:

idea: cover the ocean with white sheets/particles to make it more reflective.

Drawbacks:
sheer scale involved. Would probably have to be easily made with abundant substances
perhaps easier to simply bioengineer the atmosphere.
less heat to the oceans may upset ocean life (but perhaps one could spread just enough to offset how much warmer it is from overall earth warming.-- calculate atmosperic contribution and balance increased polar heat from ozone?)

What about fake icebergs (or even giant mirrors?--- biodegradable plastic?)

Tangential thought: Snow reflects more light than rain. Therefore, any effort to increase snowfall (vs. rain) could be explored. Corollary to this is that less snow could produce positive feedback loop for more/less warming (I've heard this before)


wide areas of land with white. The highway system has already been suggest