Specifically there's a delay of 10 to 30 years between releasing CO2 and getting the full temperature increase from it, just like there's a delay between turnin

Specifically there's a delay of 10 to 30 years between releasing CO2 and getting the full temperature increase from it, just like there's a delay between turning on a stove burner and boiling water in a pot. On top of that simple heating time, there are feedback effects like melting permafrost releasing additional greenhouse gases, and (as you mentioned) melting ice reducing the planetary albedo.