A miscalculation has left New Zealand with less wiggle-room to meet all of its planned greenhouse gas savings.
The Ministry for the Environment said the proportion of diesel cars in the country's vehicle fleet was under-reported, leading to the error.
It means the country is producing thousands of tonnes more in greenhouse gas emissions than previously reported, which now have to be accounted for in the government's emissions savings plans.
The emissions budget for 2026 to 2030 is still on track despite the mistake, the ministry said.
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