The UK government faces a stark economic reckoning if it approves two major North Sea oil fields. New analysis reveals that climate damages from the Rosebank and Jackdaw developments would cost between £119 billion and £336 billion over coming decades, dwarfing the £28.7 billion in projected economic benefits that operator Adura claims for the UK.
The study quantifies environmental externalities that traditional project assessments often ignore or downplay. Climate damage translates into real economic costs: healthcare expenses from air pollution, crop losses, infrastructure damage from extreme weather, and adaptation spending. When those costs are calculated and attributed to the carbon emissions these fields would produce, the math overwhelms any jobs or tax revenue argument.
Rosebank sits northwest of the Shetland Islands. The field could produce up to 300 million barrels of oil equivalent. Jackdaw operates in the central North Sea and would extract additional reserves. Together they represent among the last major undeveloped fossil fuel projects in UK waters. The government approved Rosebank in March 2023, against recommendations from its own climate advisers at the Climate Change Committee. Jackdaw approval followed. Both decisions happened after the UK pledged to cut emissions by 81 percent by 2035 compared to 1990 levels, a target enshrined in law.
The analysis treats climate damages as an economic cost borne by society, not the companies extracting the oil. It applies a carbon price reflecting the true social cost of greenhouse gas emissions. Academic research consistently shows that market prices dramatically undervalue climate harms. The European Central Bank estimated in 2023 that carbon emissions carry an unpriced environmental cost of roughly $100 to $200 per ton. Most carbon pricing schemes globally sit far below that range.
Oil extracted from these North Sea fields enters international markets. Burning that oil anywhere on Earth produces emissions that contribute to planetary warming affecting every nation. The UK cannot benefit from global economic activity while externalizing the climate costs to itself and others. Physics does not recognize borders on atmospheric CO2.
The findings matter because they expose the accounting fiction underlying new fossil fuel approvals. Energy companies and governments often present development decisions in isolation, highlighting direct employment and tax payments while treating climate costs as abstract or distant. This analysis collapses that separation.
UK energy policy now confronts competing imperatives. The country needs energy security and affordable power. It also committed to legally binding climate targets. The analysis suggests these fields cannot satisfy both mandates simultaneously. Approving projects that generate £200-plus billion in net economic damage contradicts any reasonable climate policy framework.
Renewable energy expansion offers alternative pathways for energy independence and growth without the climate liability. Offshore wind, solar, and grid storage have fallen dramatically in cost. The UK's Climate Change Committee argues that meeting 2035 targets requires rapidly accelerating clean energy deployment, not approving new fossil fuel production.
The Rosebank and Jackdaw decisions represent policy choices, not inevitable outcomes. Future administrations retain authority to halt development if circumstances change or evidence shifts opinion. Oil prices may collapse. Climate damages may accelerate beyond projections. Public pressure may intensify. The economic case for these fields, once stripped of climate accounting tricks, reveals itself as profoundly weak.