We find out whether new rules could allow it to move away distance itself from previous accusations of "greenwashing" and fraud?

There have been previous false starts for a system which in theory allows for companies and countries to offset their carbon emissions by paying for projects which reduce or mitigate emissions elsewhere.

But new UN legislation - which has been a decade in the making – now clarified and ready for use those in the sector hope that the next few years will prove fruitful for the industry.

However, questions remain about whether overall the system will help to reduce global emissions.

Produced and presented by Hannah Bewley

(Image: Renwick Drysdale, managing director of akre)