That's exactly why I found this so fascinating. I know that the ice caps are extremely important for slowing climate change (due to their albedo, being completely white). I had no idea that clouds were so prevalent. My initial thoughts on seeing that image were "wow, that's a lot of albedo, has climate change improved cloud coverage?" A directly counteracting force to the most dangerous GHG (water vapor). Turns out maybe not? We don't have industrial age data in this, so we can't tell for certain - but maybe (likely not) there is a glimmer of hope.
Thanks for the additional information, either way.