The reference to CCS was in line with the acronym used by LCK in...

The reference to CCS was in line with the acronym used by LCK in their documenation available on this forum, ie "Carbon Capture and Storage". You're now allowing Sequestration to be used interchangeably, which I am fine with - you're not the first to move goalposts.

From reading yours and JL's references to carbon sequestration, it looks like you're specifically referring to geological sequestration without being so definitive because syllables.

If you stop reading because it's signed-off by Kylie Calhoun, that's probably fair enough - she works for the Government, after all. What is useful is the references to relevant sections of The EPBC Act and the multiple references to "ecology" , "impact", "environment", "endangered" and other topics that are infrequently associates with greenhouse gas emmissions. CCS/S is kind of important in that context.