Has anyone dug into the numbers related to AGW in connection to the heat content of the oceans? I've seen the graph on this wiki page in several places, and I did a calculation suggesting that the heat capacity of the oceans is about 5e24J/(deg C). Since the graph suggests an increase in heat content of about 1e22J/yr, this calculation implies we'll get about 1 degree of warming in 500 years.
Is my calculation wrong? If so, why? Has anyone else looked into this?
It looks to me as if your calculation
But when people worry about AGW it usually isn't primarily ocean temperatures they're worried about, it's land temperatures where people live and grow crops, and the mechanism they worry about isn't that human activities make the oceans hotter and everything else follows along, it's that human activities war...
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