Carbon capture experts warn of slow UK progress
4 November 2013 Last updated at 15:45 GMT
Scientists involved in carbon capture and storage have said they are "angry and depressed" because of the UK government's slow progress on the issue.
Scotland's leading expert in the field, Professor Stuart Haszeldine, has told BBC Scotland urgent action is needed as part of the fight against global warming.
A UK-wide competition to develop the technology has been beset with problems and delays.
The UK government has said it remains committed to the development of the green technology and a decision on the next stage of the competition will be made at the turn of the year.