1, Direct Air Capture of CO2. In its quarterly results presentation, Exxon Mobil said it had ‘Completed construction of a direct air capture (DAC) prototype piloting proprietary technology’.
Re "Offshore wind and hydrogen ... oxygen will then be added to nearby parts of the Baltic Sea ... allow the rebuilding of the marine ecology": What is the carbon sequestration potential of restoring the marine ecology?
Hello Ken, I'm afraid I couldn't find any estimate of the impact of the extra oxygen on carbon pulldown. When I have a moment, I will write to OX2, the principal developer, to ask this question. Thanks for raising this important issue.
Re "Offshore wind and hydrogen ... oxygen will then be added to nearby parts of the Baltic Sea ... allow the rebuilding of the marine ecology": What is the carbon sequestration potential of restoring the marine ecology?
Hello Ken, I'm afraid I couldn't find any estimate of the impact of the extra oxygen on carbon pulldown. When I have a moment, I will write to OX2, the principal developer, to ask this question. Thanks for raising this important issue.
Not clear what advantage there is in using pure oxygen to aerate oceans rather than air. Pure oxygen has many other commercial uses.
Good point! Wish I'd thought of that.
Of course it would require almost four times as much air as pure oxygen, but it might be simpler just to pump air to the bottom of the sea. Thank you.