"We now make about 37 billion tons of carbon dioxide. Ten percent of that is 3.7 billion tons. Say 4 billion tons of C02, just to control 10 percent of the problem. This is almost exactly the amount of crude oil we produce. It took us 100-plus years to develop an industry, which is taking 4 billion tons out of the ground and with the gradient, and then taking it up and refining and using it. Now we would have to develop a new industry, which would take 4 billion tons, and store it, push it against the gradient into the ground, and guarantee that it will stay there forever. Something like this cannot be done in five, or 10, or 15 years. And this is 10 percent. So, simply on the matter of scale, carbon sequestration is just simply dead on arrival."
Wallace-Wells, David. "Vaclav Smil: We Must Leave Growth Behind." New York, Sept. 24, 2019