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Former UK Prime Minister Boris Johnson acknowledges that his push for rapid transition to renewable energy was overly optimistic, calling for a more measured approach to net zero ambitions amidst political debates and international commitments.

Boris Johnson has acknowledged he moved “far too fast” on the UK’s net zero agenda during his premiership, admitting he was overly optimistic about the capacity of renewable energy to meet the country’s needs. In an upcoming book titled Prosperity Through Growth, Johnson reflects candidly on his climate policies, conceding that the surge in energy prices and the repercussions of the Ukraine conflict exposed the limitations of a rapid transition away from fossil fuels. He told one of the book’s authors that the initial push for quick adoption of sustainable energy “wouldn’t work” as planned, prompting a more cautious stance that includes allowing continued use of hydrocarbons for the foreseeable future.

Despite his admission of hastiness, Johnson warned against abandoning net zero targets entirely. He stressed the importance of maintaining public confidence in the government’s commitment to environmental goals, saying, “We’re still going to go for net zero, but it’s going to take a bit longer to get there.” Johnson also lent support to former Labour Prime Minister Tony Blair’s recent critique of fossil fuel reduction strategies, agreeing that efforts to rapidly phase out or limit fossil fuel consumption had proven “too expensive for ordinary people” and “too fast.”

Johnson’s tempered view contrasts with the position of Conservative leadership contender Kemi Badenoch, who recently vowed to repeal the UK’s landmark Climate Change Act, which commits the country to cutting greenhouse gas emissions to net zero by 2050. Badenoch characterises the Act as “nonsensical” and has proposed replacing it with a policy focused on ensuring “cheap and reliable” energy supply. This proposed rollback has been met with strong criticism, notably from Theresa May—Johnson’s predecessor—who called Badenoch’s plans “a catastrophic mistake.” Environmental groups have also condemned the move, framing it as a dangerous retreat from the UK’s global climate leadership.

The Climate Change Act itself, enacted by the Labour government in 2008 and later amended to strengthen emissions targets, underpins much of the UK’s climate policy framework. As prime minister, Johnson had previously been a vocal advocate for the Act’s ambitious goals, urging nations around the world to commit to net zero emissions by mid-century and to adopt robust interim targets.

However, recent actions by the government under Prime Minister Rishi Sunak suggest a dilution of those commitments, with delayed implementation of critical green policies like the ban on new petrol and diesel cars and the phase-out of gas boilers. Johnson has publicly criticised these moves, accusing Sunak of “losing ambition” and warning that weakening climate policies risks undermining business confidence and the country’s international standing. Speaking to the media, Johnson emphasised the necessity of sustaining ambition despite the practical challenges, reflecting a nuanced position that balances realism with ongoing support for climate goals.

In the context of ongoing debate within the Conservative Party and across the UK’s political landscape, Johnson’s remarks highlight the tension between economic pragmatism and environmental commitment. His recognition of the costs and challenges of rapid change does not equate to wholesale rejection of net zero but signals a call for a more measured approach that takes into account energy security and affordability.

Meanwhile, at the international COP27 climate summit, Johnson reinforced his commitment to the broader net zero campaign, rejecting calls by “net zero naysayers” to expand fossil fuel extraction through fracking. He framed himself as the “spirit of Glasgow COP26,” urging for a continued global push to reduce reliance on hydrocarbons, despite setbacks and geopolitical pressures.

This evolving discourse reveals a critical juncture in UK climate strategy, as policymakers and politicians grapple with balancing environmental imperatives against economic realities, with net zero ambitions under intense scrutiny but not abandoned.

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Source: Noah Wire Services

Noah Fact Check Pro

The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.

Freshness check

Score:
8

Notes:
The narrative appears to be fresh, with the earliest known publication date being October 5, 2025. The Irish News published the report on this date, citing an upcoming book titled ‘Prosperity Through Growth’ by Boris Johnson. This suggests the content is original and not recycled from previous news. The report has been picked up by other reputable outlets, such as The Standard, indicating its relevance and timeliness. ([standard.co.uk](https://www.standard.co.uk/news/politics/boris-johnson-kemi-badenoch-new-labour-ukraine-maidenhead-b1251363.html?utm_source=openai)) There is no evidence of the narrative being republished across low-quality sites or clickbait networks. The mention of the upcoming book adds to the freshness score, as it provides new insights into Johnson’s views on net zero. No discrepancies in figures, dates, or quotes were found in the available sources.

Quotes check

Score:
9

Notes:
The direct quotes attributed to Boris Johnson in the report are consistent across multiple reputable sources. For instance, The Standard reports Johnson stating, ‘I think net zero, we went far too fast. And I’ve got to be honest about that, I got carried away by the idea that sustainable and renewable forms of energy could fill the gap.’ ([standard.co.uk](https://www.standard.co.uk/news/politics/boris-johnson-kemi-badenoch-new-labour-ukraine-maidenhead-b1251363.html?utm_source=openai)) This consistency across sources suggests the quotes are accurately reported. No variations in wording or discrepancies were found. The absence of earlier matches for these specific quotes indicates they are likely original or exclusive content.

Source reliability

Score:
8

Notes:
The narrative originates from The Irish News, a reputable news outlet. The report cites an upcoming book by Boris Johnson, ‘Prosperity Through Growth,’ which adds credibility to the information. The Standard, another reputable source, has also reported on the same content, further validating the information. There is no indication of the narrative originating from obscure or unverifiable sources. The entities mentioned, such as Boris Johnson and Kemi Badenoch, are well-known public figures with verifiable records.

Plausability check

Score:
8

Notes:
The claims made in the narrative are plausible and align with known events and statements. Boris Johnson has previously advocated for net zero targets and has been involved in climate policy discussions. The report’s mention of Kemi Badenoch’s stance on the Climate Change Act is consistent with her known positions. The language and tone of the report are consistent with typical journalistic standards, and there are no signs of unusual phrasing or inconsistencies. The report provides specific factual anchors, such as dates, names, and events, which support its credibility.

Overall assessment

Verdict (FAIL, OPEN, PASS): PASS

Confidence (LOW, MEDIUM, HIGH): HIGH

Summary:
The narrative is fresh, with no evidence of recycled content. The quotes are consistent across reputable sources, and the information originates from credible outlets. The claims are plausible and supported by specific details. No significant credibility risks were identified, leading to a high confidence in the assessment.

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