A new way to remove greenhouse gases from the atmosphere

[The_jackalope]

7. Like all other CO2 extraction technologies, this one is defeated by the scale of the problem

Just to keep CO2 concentrations level, we would need to capture and store ~35 billion tonnes of CO2 every year. Then we would need to increase that capture/storage rate to reduce the concentration over time.

We could address part of the problem by reducing global emission rates, but the only times that has happened in the last 50 years was in the early 1980s, and in 2008 - both times due to massive world economic problems. I don't propose that as a solution, however. I don't think electric cars or wind and solar are going to do the job, but hey I've been wrong before. Luckily, however, this is a self-limiting problem. As civilization crashes, so does human activity. And the energy required to drive it, and the CO2 waste from that energy production.

And no, we won't stop using fossil fuels before TSHTF..