Consider the oceans are acidifying 10-times faster than a geologic land extinction, that is to say the aragonite buffer that provides a way to adjust pH during volcanic episodes is totally blown away and we are dissolving seashells as a result.
Adding about 40-gigatons of CO2 yearly is beyond "capture and storage" we must end the emissions to do anything meaningful in that regard, frozen that's 40-cubic kilometers of gas, you can't sequester it in strata or the deep oceans it poisons everything it touches.
The PETM killed off the land animals with hydrogen sulfide when the benthos went anaerobic, stratified to allow pink-purple bacteria to take over, these are found in the Black Sea today due to the sill stratifying it.
Dumping that CO2 into the benthos avoids having to heat the oceans to kill off the land animals, it will cause a benthic extinction folks, how stupid an idea, eh?
Please recognize also that steam power is 40% thermally efficient, 1-Joule = 1/3watt on the wire + 2/3joules of waste-heat that directly heats the planet.
My solution is wastewater biodiesel, purifying the effluent at sewage treatment plants using algae gains recycled water and more biodiesel than we burn in joules for transportation all fuels.
The advantage is removing the CO2 before you burn it, and for sewage treatment it avoids using chemicals to clean the water and replaces that cost with revenue from biodiesel production.
There is nothing else humans can use, fracking is creating a heating spike on top of putting up 100-ppm in 100-years, after the Wisconsin maximum about the fastest CO2 rose was 1-ppm/180-years, we're at 3-ppm since 2016, only 540-times faster, eh? Fossil methane is 100-times more potent a greenhouse gas than CO2 for about a decade, and, about 90% of the lifetime emissions from a wellhead are when they put it in.
So, all those fracking wells are spiking the heating, great idea to continue being in the Steam Age in 2017, eh?
Get real, study your geophysics, paleo-oceanography and paleontology or watch it burn baby, we've fully initiated runaway greenhousing at this time.
We're so lame ...