On the 11th of March, the Climate Change Committee (CCC) released a complementary report to its 2025 advice on the Seventh Carbon Budget, offering a deeper examination of the economic implications of reaching Net Zero. The report explored a number of different scenarios and consistently found that transitioning to Net Zero is more cost-effective for the UK than continuing to rely on fossil fuels. Across every scenario tested, the findings show that investing in a Net Zero transition ultimately produces significant economic and societal benefits.
- According to the report, one fossil fuel price shock could cost the UK more than the entirety of the cost for a Net Zero transition across every year to 2050.
- The report also concluded that by 2050, the UK could save between £40 billion and £130 billion by preventing the worsening impacts of climate change.
- It further estimates that energy losses could fall from roughly £60 billion per year today to about £30 billion annually under a Net Zero system.
- According to the CCC’s modelling, ‘co-benefits’ of the transition such as cleaner air, warmer homes, and improved public health and wellbeing could generate between £2 billion and £8 billion per year in net societal benefit by 2050. While the transition may introduce some challenges, such as increased commute time, these costs are projected to be outweighed by the broader gains.
Overall, the report found that “for every pound spent on Net Zero, the benefits outweigh this by 2.2 to 4.1 times.” Modelling utilising cost-benefit analysis, sensitivity analysis, and assessments of baseline and gross system costs consistently found this same result, regardless of the assumptions or methodologies used in the modelling. The conclusion of the report was clear: achieving Net Zero delivers a net benefit to society under every scenario examined. This further reinforces the urgency highlighted in the CCC’s 2025 Progress Report to Parliament, which warned that delays in climate action increase both economic and environmental risks. Ultimately, these findings underscore a critical point. The question is no longer whether the UK can afford the transition to Net Zero, it is whether it can afford not to. Continuing with the status quo exposes the country to rising climate damages, volatile fossil fuel markets, and growing economic inefficiencies. Acting now is not only environmentally responsible, it is economically rational. Read more of the supplementary analysis here.
