For 2015 we did 37-Gigatons CO2-eqv, frozen it's 37 cubic-km's of gas, 25% of it stays for over 10,000-years in the atmosphere, Catch-22 on CO2.
The idea to sequester that much CO2 a year will shatter strata to earthquakes along with acid poisoning from the CO2 touching groundwater or aquifers, Kansas joined the real estate boom in earthquake properties lately, prices are falling by the minute.
Dumped into the sea that much in a year bets will cause a benthic extinction, maybe it'll take 3-years?
That's rather immature and delusional geophysically speaking, it's the same problem with nuclear waste, eh?
End the Steam-Age for electrons, 80% of grid power is for thermal end uses move that to active-solar-HVAC, poof gone and who needs a new power plant?
Thus ending the grid will take less than 5-years, if it was a war maybe 2-months.
It's simply faster, cheaper and easier removing those from the grid by using onsite thermal collection & storage having zero emissions, far less copper and concrete-n-steel as carbon-footprint and doesn't go down in a big storm.