It is really a shame that there is not a carbon dioxide tax and have it pay out for sequestering carbon dioxide (negative emissions). Sequestering CO2 in geologic formations would fit right in with oil and gas company's core competencies. Many of those companies supported a carbon dioxide tax and they could have transitioned to companies just sequestering carbon dioxide sometime in the future. This could still be done right now, but current politics is more interested in punishing the other side than finding win/win solutions.