I made these for a recent conference I was particularly happy with the way these came out.

And the fire ones:

Nice. The first one is interesting.

Yeah about half of the values in that figure, mostly the rate functions and some of the standing pools are from my own research.

Cool! What did you make these with?

I think in struggling with the first one: is atmosphere the total atmospheric pool divided by the earth's surface area? Should there be another loop for carbon that remains in the atmosphere year-to-year? It's not all absorbed, right?

I think in struggling with the first one: is atmosphere the total atmospheric pool divided by the earth’s surface area?

That's actually good feedback that you are struggling with; the answer is that the 19.1 is the gross amount of material coming out of the atmosphere. Everything here is in megagrams of carbon per hectare per year. So I could make that more clear.

I used a sankeyflow in python. So its all done in code and with very little revision it made high quality attractive sankeys. I didn't label them in python though, it was too fidgetty, so I did that in powerpoint.

Ah, that makes sense, so the gap at the top left of "Atmosphere CO2" is basically the total annual biosphere draw-down by the biosphere..