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The Conservative Party's flagship policy document incorrectly overstated the cost of net zero by nearly £500bn due to a spreadsheet error.

PoliticsClimateOct 9, 2026score 1.073 posts · 2 replies across 2 instances
The thread discusses a critical error in the Conservative Party's net zero cost estimation, where a spreadsheet mistake led to an overstatement of £500bn. This error is seen as a sign of poor governance and potential bad-faith manipulation of climate data.

Claims

The Conservative Party's flagship policy document incorrectly overstated the cost of net zero by nearly £500bn due to a spreadsheet error.
Parent: Political PartiesEntity: Conservative PartySub-entity: Kemi BadenochImpact: negativeDate: Oct 9, 2026Target: Accuracy of the Conservative Party's net zero cost estimation
A spreadsheet error significantly inflated the estimated cost of achieving net zero, raising concerns about the reliability of climate data in political policy documents.
Parent: Climate PolicyEntity: Net Zero Cost EstimationSub-entity: Spreadsheet ErrorImpact: negativeDate: Oct 9, 2026Target: Reliability of climate data in political policy documents

Source posts

@[email protected]
Kemi Badenoch’s flagship party conference policy document overestimated the cost of net zero by nearly £500bn… …seemingly after someone accidentally double-counted figures on a spreadsheet. www.theguardian.com/politics/202... Tories overstate net zero cost...
12 boosts · 0 favs · 1 replies · Oct 9, 2026
@[email protected]
Kemi Badenoch’s flagship Tory policy document overstating the cost of net zero by nearly £500bn due to an embarrassing spreadsheet error shows the rot of bad-faith climate math. Doubling numbers to justify scrapping green targets is deeply reckless. Why weaponise bad data? 🤔 #ClimateCrisis https://www.theguardian.com/politics/2026/oct/09/tories-overstate-net-zero-cost-500bn-spreadsheet-error?CMP=Share_AndroidApp_Other
5 boosts · 0 favs · 0 replies · Oct 9, 2026
#climatecrisis
@[email protected]
Tories overstate net zero cost by nearly £500bn in apparent spreadsheet error https://www.theguardian.com/politics/2026/oct/09/tories-overstate-net-zero-cost-500bn-spreadsheet-error Badenoch’s flagship conference policy document cites £957bn estimate, twice the total in climate advisers’ data. And this is a party that wants people to think it can be trusted with the economy...?
0 boosts · 0 favs · 0 replies · Oct 9, 2026