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Antarctic CO2 Hit 400 PPM for First Time in 4M Years

scientificamerican.com

11–20 of 315 posts

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#12

Assuming the fossil record and all of our measurements and assumptions about our measurements are correct. It's not like anyone was there, writing this stuff down at the time.

Oh this is reassuring. If we can't find a post it documenting the co2 levels within that ice, we are fine I guess.

Let me burn a tire to celebrate.

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#15

No no, that just won't do. Math and modeling doesn't allow us to draw conclusions about things we can't directly observe. Someone had to be there and directly count the co2 molecules with their own eyes or it doesn't count as evidence.

I actually was the same for the dinosaurs. Have you seen any and written it down?

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#16
post #2

The worst thing is that we can't stop it when it will be too late. This doesn't work like a switch. Even if we would drastically cut all CO2 emission those levels would not drop in our lifetimes.

Relying on natural processes yes there is a problem, but if we were to put WWII levels of resources into it we could create artificial trees [1] while hiding under a short term SO2 umbrella [2]. Of course I doubt we will actually do this.

1. https://en.m.wikipedia.org/wiki/Carbon_dioxide_removal

2. https://en.m.wikipedia.org/wiki/Climate_engineering

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#17
post #2

The worst thing is that we can't stop it when it will be too late. This doesn't work like a switch. Even if we would drastically cut all CO2 emission those levels would not drop in our lifetimes.

Relying on natural processes yes there is a problem, but if we were to put WWII levels of resources into it we could create artificial trees [1] while hiding under a short term SO2 umbrella [2]. Of course I doubt we will actually do this. 1. https://en.m.wikipedia.org/wiki/Carbon_dioxide_removal 2. https://en.m.wikipedia.org/wiki/Climate_engineering

I have no doubt at we will try this, plus a lot of even dumber ideas, once the shit really starts to hit the fan. The world is not going to just sit back as Manhattan, Mumbai, Shanghai, Sydney, Rio, etc. disappear under a foot or two of water. Politicians (the same one who spent 50 years failing on this issue) will demand action. It's the best argument I can think of for putting serious research effort into geoengineering, odious as it may be.

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#18
post #10

Nice visualization from NASA: https://svs.gsfc.nasa.gov/vis/a010000/a011700/a011719/11719-...

That is fascinating - Any idea how this was made?

It's a simulation based on ground measurement.

https://svs.gsfc.nasa.gov/11719

Now we have: http://oco.jpl.nasa.gov/ (2014)

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#19

Earlier quoted context omitted.

Relying on natural processes yes there is a problem, but if we were to put WWII levels of resources into it we could create artificial trees [1] while hiding under a short term SO2 umbrella [2]. Of course I doubt we will actually do this. 1. https://en.m.wikipedia.org/wiki/Carbon_dioxide_removal 2. https://en.m.wikipedia.org/wiki/Climate_engineering

I have no doubt at we will try this, plus a lot of even dumber ideas, once the shit really starts to hit the fan. The world is not going to just sit back as Manhattan, Mumbai, Shanghai, Sydney, Rio, etc. disappear under a foot or two of water. Politicians (the same one who spent 50 years failing on this issue) will demand action. It's the best argument I can think of for putting serious research effort into geoengine…

Artificial trees are not considered geoengineering since they are just reversing the CO2 released. The really sad aspect is we are not putting in the R&D resources needed to develop them to the required scale. No matter what we do about preventing the release of more CO2, we need to deal with the CO2 that has already been released.

Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years

#20
post #10

Nice visualization from NASA: https://svs.gsfc.nasa.gov/vis/a010000/a011700/a011719/11719-...

Beautiful. I'd love to have seen it in an equal-area projection, though. The high concentrations are disproportionately in the high latitudes where area is stretched, so I think the yearly variation would look a little less ominous that way.

Anyway, I hope one day we can get a new Sim Earth with this style of simulation and presentation.

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