Green party analysis shared with the Guardian identifies up to 50 Labour-held seats — including that of Louise Haigh, a key Andy Burnham ally — where the smallest swing could deliver the constituency to the Greens. The trigger: any government approval of new North Sea oil and gas drilling, specifically the Jackdaw gasfield and the Rosebank oilfield west of Shetland, with decisions due in coming weeks. The methodology is straightforward if self-serving. Green researchers ranked the 50 Labour seats requiring the smallest swing to flip, then cross-referenced constituency-level polling by Friends of the Earth from October 2025 asking whether the government should "go faster" on climate. More than 50% of voters in every identified battleground backed faster action. Thirty-seven of the 50 seats met or exceeded the England-wide average of 55.5%; thirteen fell below it. In several constituencies, more than two-thirds supported the idea. Labour's response was dismissive. A party source called the findings "utter fantasy from a party desperate for relevance," noting that since Burnham took office, the Greens' projected seat count has fallen from 20 to seven. The party points to its record on lower bills, energy security, and jobs. Burnham himself has said he would be "pragmatic" about oil and gas, framing the question as one of supply origin rather than phase-out: "The question isn't whether Britain will still be using oil and gas, the question is where does it come from." But the dismissal papers over a real tension inside the Labour coalition. Many Labour MPs are privately alarmed. The UK has experienced its worst drought since 1976, record heatwaves, wildfires, and climate-linked food inflation this summer. These MPs argue new North Sea drilling does nothing for energy security or consumer bills — the oil trades on global markets regardless — and instead channels taxpayer money into oil firms already posting record profits. Luke Tryl of More in Common, an independent polling outfit, validated the structural risk without endorsing the Greens' specific numbers. Climate action, he said, is "an important glue that unites much of Labour's coalition." If Labour is seen rowing back, "it will undoubtedly deter some of the progressive voters Labour has been winning back under Burnham." His caveat: approving individual licences might not trigger a Green surge as long as voters believe Labour is sticking to its net zero manifesto pledges. A pragmatic approach balancing climate and cost of living is the safest path. Green deputy leader Rachel Millward framed the stakes in existential terms, calling the climate crisis "the worst crisis since world war two" and accusing Burnham of being "more interested in telling Donald Trump what he wants to hear on North Sea drilling than taking the bold action needed to keep us safe." The Greens expect a new surge in Labour defectors if Jackdaw and Rosebank are approved. The structural question underneath the partisan noise is simple: does Labour's coalition survive a visible pro-drilling decision when its own voters overwhelmingly say they want faster climate action? The polling says the risk is real. Whether it translates into actual seat losses depends on whether voters see individual licence approvals as pragmatism within a net zero framework — or as betrayal of it.
