DUBAI - This year's climate summit in Dubai (COP28) is focussing heavily on carbon capture and storage (CCS).

Sultan Ahmed Al Jaber, who is both the COP president and boss of United Arab Emirates oil giant ADNOC, has been promoting carbon capture as a climate solution.

At present no technology has proven capable of sequestering carbon to the level needed to prevent even more global warming.

Closing the gap between what's needed and what's actually distributed is one of the main topics at the COP28 UN climate summit in Dubai on Monday. One problem is that no one knows how much is actually being spent.