That's 5-times outside "natural variation" for the epoch that previously had a maximum of 305-ppm over a million years of ice-ages that mainly varied between 180-280ppm, 100-ppm or 9% variance, at 405-ppm it's 45%.

At 405-ppm we jumped CO125-ppm in 260-years, about 1/460th the time natural systems take and that's acidifying the oceans 10-times faster than known extinction events.

The other factor of being at 405-ppm is sea-level balances out to 25m/82ft higher than today matters not how long it takes.

Last year's carbon was 37-Gigatons CO2eqv, frozen it's 37 cubic kilometers of gas, 25% of it stays for over 10,000-years from when it was emitted, Catch-22 on CO2 emissions.

The planet sequesters excess CO2 in the atmosphere and lets rock weathering remove it over millions of years, a rather slow process for humans.

So the idea to sequester that much CO2 a year just to counter reality for the next several decades without over-stressing the area to earthquakes with a high risk of the poisoning effect of excess CO2 acidifying groundwater or aquifers is sketchy at best.

Dumped into the sea that much CO2 causes a benthic extinction, bacteria take over.

What we're doing is all rather immature and delusional geophysically speaking, it's the same problem with nuclear waste, eh?

End the Steam-Age to end fossil fuel use for electrons, produce biodiesel for transportation at sewage treatment plants by growing algae on the wastewater nutrients to purify the water, they do a good job and make full recycling "cheap" by producing the biodiesel.

Hope this is useful info.

Stick your carbon tax up your ass. #SCAM