I guess the AGW hypothesis implies that the energy of Earth system is
It might be nice to have a measurable proxy parameter for that energy
that is relentlessly increasing year after year.
Such a parameter could become like the Dow Jones Industrial Average of
AGW, it might be more convincing to the general public to focus
attention on a relentlessly increasing parameter.
The thermal expansion of the oceans might be a suitable parameter of
I have the impression that denying or explaining away of the thermal
expansion of the oceans is difficult, but I am not sure about this. I
don't want to underestimate the creativity or PR prowess of the
The general characteristics of this parameter:
1. Captures a good bit of the Earth's AGW-induced energy increase
2. Easy to explain to the public and hard to deny or explain away.
3. Increases relentlessly year over year (assuming a big volcano or
something does not cause a temporary halt to warming, if that is
Of course, there are a lot of ocean-related parameters of interest
(runoff, ice extent, sea-level rise). To paraphrase James Carville:
"It's the oceans, stupid"
Coined from Carville's "It's the economy, stupid":
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