Admitting the influence of the oceans is two-edged sword to alarmists. CAGW is not possible if we need to warm the oceans. It takes centuries to warm 1,35 10**9 km3 of water with 4 W/m2 forcing.
Think about a m2 on planet Earth: 6000 km of liquid iron, 4 km of water and 100 km of atmosphere. Warm it with 4 W light bulb at 5 000 m height.