Carbon Capture and Storage (particularly on biomass) appears to be one of the more realistic solutions. So it was a huge shame when the UK Conservative government cancelled planned investment in CCS (breaking a manifesto promise in the process).

It's not a technical or economic problem. It's a political and social problem.

https://www.theguardian.com/environment/2015/nov/25/uk-cance...

https://www.theguardian.com/environment/2016/jul/20/treasury...