The end of North Sea oil and gas production within a decade could be the Scottish Greens' price for joining the SNP in coalition after next month's Holyrood election, a TV debate has heard. Douglas Ross, the Scottish Tory leader, challenged Patrick Harvie, the co-leader of the Scottish Greens, over a potential coalition with the SNP after May’s election and what it would mean for thousands of workers in the oil and gas sector. There is speculation that Nicola Sturgeon is keen to seek a formal agreement with the party in an effort to boost her environmental credentials ahead of the COP 26 UN Summit in Glasgow in November, which would see Mr Harvie’s party handed ministerial posts. Mr Harvie did not deny Mr Ross’s claim that calling for an end to North Sea oil and gas production would be his price for a deal with the SNP. Challenged over a timeframe, he suggested the industry should stop within a decade. The STV debate also heard accusations that Nicola Sturgeon is determined to divide Scotland again over independence and reopen wounds from the 2014 referendum rather than focusing on recovery from the pandemic.