Net Zero and National Security: How can Parliament hold the Government to account?

In this episode, we sit down with Toby Perkins MP, Chair of Parliament’s Environmental Audit Committee, to discuss how he and his colleagues plan to hold the Government accountable for its ambitious Net Zero commitments.

The Government’s advisory body, the Climate Change Committee, has now recommended emissions reductions for the Seventh Carbon Budget (2038-2042) —the next milestone in achieving Net Zero by 2050. Ministers must decide how much of this advice to adopt before presenting a legally binding carbon budget to Parliament for approval. Yet, in 2021, MPs spent just 17 minutes debating the Sixth Carbon Budget Order, a move later criticised by Prime Minister Rishi Sunak for its lack of scrutiny. With Keir Starmer and Ed Miliband now leading the Government, how will parliamentary oversight of climate policy change? Will MPs take their role more seriously this time?

We also examine an escalating dispute between the Government and Parliament’s National Security Committee. The Government has refused to allow Jonathan Powell, the new National Security Adviser (NSA), to give evidence to the Committee and has stopped sharing National Security Council (NSC) agendas — breaking a decade-long tradition of confidential engagement. Every NSA since 2010 has testified before Parliament, yet Ministers now argue Powell is a special adviser, not an official, and should not be subject to scrutiny. Critics, however, warn that this move weakens transparency and parliamentary oversight at a time of heightened public concern over defence and security. Matt Western MP, Chair of the NSC, argues that restricting access to the NSA could leave Parliament in the dark on key national security decisions.

Finally, we speak to Simon Hart, former Conservative MP and Chief Whip, about his newly published political diaries—packed with eyebrow-raising revelations, from Ministers getting stuck in brothels at 2am to tantrums from sacked colleagues. But beyond the scandalous anecdotes, Hart delivers a serious message: political parties need to improve candidate selection, manage MPs’ expectations, and ensure future politicians are mentally resilient enough to handle the intense pressures of modern political life.

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Parliament Matters is a Hansard Society production supported by the Joseph Rowntree Charitable Trust.

Presenters: Mark D'Arcy and Ruth Fox

Producer: Richard Townsend

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