There is one thing that could affect the situation that is outside human or solar influence. If the Pacific Hot Spot gets significantly active it could cause a warming of the Pacific Ocean all by its self. An El Nino could cause an out of solar phase Global Warming similar to what may have occurred in 1998.
Ocean circulation doesn't create heat, just moves it around. El Niño could cause one area to get warmer, but something else must get colder in return, so there couldn't be net warming. The warm-ongers continually blame El Niño and La Niña for their prediction failures but they never point out where their excess heat is hiding out.