UK Conservatives cite inflated £957bn net-zero cost estimate after apparent spreadsheet error

Britain's opposition Conservative party doubled the estimated cost of reaching net-zero emissions in a policy document released at conference, citing £957 billion instead of the £480 billion figure from government climate advisers.

First covered Oct 8, 2026 · 11:00 PM PT · 2 articles · no longer in the live window

UK Conservatives cite inflated £957bn net-zero cost estimate after apparent spreadsheet error — Image via carbonbrief.org

Coverage

33d Guardian Environment Tories overstate net zero cost by nearly £500bn in apparent spreadsheet error — Exclusive: Badenoch’s flagship conference policy document cites £957bn estimate, twice the total in climate advisers’ data Kemi Badenoch’s flagship party…

33d Carbon Brief Factcheck: UK Conservatives double the ‘cost of net-zero’ after spreadsheet blunder — A booklet published by the UK’s opposition Conservative party includes a “cost of net-zero” that appears to have been doubled… The post Factcheck: UK…

Primary sources

iea.org.uk Turver Cost Of Net Zero Set Final 03 (iea.org.uk) — cited by 2 of the outlets above

theccc.org.uk The Sixth Carbon Budget The Uks Path To Net Zero (theccc.org.uk) — cited by 2 of the outlets above

spectator.com How much will net zero cost? — cited by 2 of the outlets above

More coverage from around the web

leftfootforward.org Tories overestimate net zero cost by nearly £500 billion in policy document blunder - Left Foot Forward: Leading the UK's progressive debate

fuseenergy.com Tory net zero cost error: £500 billion overstatement

newsminimalist.com Tory net zero cost claim overstated by £500bn in spreadsheet error

no2nuclearpower.org.uk Climate Policy - No2NuclearPower

rigatv.com Tories overstate net zero cost by nearly £500bn in apparent spreadsheet error — Rīga TV

Appeared in: 2026-10-10 (#12) · 2026-10-11 (#16)

← Back to the brief