Zero Hour campaign (UK)

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Zero Hour
FormationAugust 2020
Founded atUnited Kingdom
TypeNon-profit campaign (private company limited by guarantee)
Registration no.12846343
Legal statusActive
PurposeClimate and environmental campaigning
HeadquartersUnited Kingdom
MethodsGrassroots campaigning, parliamentary lobbying, public engagement, policy development
FieldsClimate and nature crisis
Chair
Michael Scott
Co-Executive Directors
Dr Amy McDonnell, James Sutton
Key parliamentary supporters
Caroline Lucas, Lord Redesdale, Olivia Blake, Alex Sobel, Roz Savage
Key people
Ron Bailey (and formerly, Charles Secrett and Oliver Sidorczuk)
Main organ
Board of directors
Staff9 (year ending March 2025)
Websitezerohour.uk
Formerly called
CEE Bill Alliance

Zero Hour (formerly the CEE Bill Alliance) is a UK non-profit organisation founded in August 2020 that campaigns for legislation to address climate and nature breakdown in line with scientific consensus.

Its work spans parliamentary lobbying, policy development and public engagement on areas including climate adaptation, energy security and nature recovery.

Zero Hour launched its campaign for a Nature and National Security Bill in May 2026,[1] having led the campaign for the Climate and Nature Bill between 2019–25.[2] Zero Hour also serves as secretariat for the Climate and Nature Crisis Caucus (CNCC),[3] a cross-party group in the UK Parliament chaired by Olivia Blake.

Strategy

Zero Hour pursues three main objectives: securing new climate and nature legislation based on scientific consensus, rebuilding cross-party parliamentary support through the CNCC, and strengthening community resilience by connecting activist networks across the UK.[4]

History

Zero Hour was founded in August 2020 as the CEE Bill Alliance to campaign for urgent, science-led and joined-up climate and nature legislation for the UK.[5][6]

Supporters of the campaign drafted the 'Climate and Ecological Emergency Bill' (also known as the 'Three Demands Bill'),[7] which was promoted ahead of the 2019 general election.[8] The bill sought to set legally binding, science-led climate and nature objectives for the UK – and establish a citizens' assembly to help develop an integrated government strategy.

On 2 September 2020, the Climate and Ecology Bill was presented in the House of Commons by Caroline Lucas, then a Green Party MP.[9] Lucas represented the bill in the Commons on 21 June 2021.[10] Lord Redesdale introduced the bill in the House of Lords on 25 May 2022 via the ballot procedure[11] – where it was amended to the 'Ecology Bill' – and completed all Lords stages.[12] The bill did not advance through the Commons before the session ended.

Olivia Blake (Labour) introduced the bill via the ten minute rule procedure on 10 May 2023.[13] Alex Sobel (Labour/Co-op) presented the bill on 21 March 2024,[14] when its short title was revised to 'Climate and Nature Bill'.

Roz Savage (Lib Dem) advanced the bill to a second reading for the first time on 24 January 2025 via the ballot procedure.[15] Like the Conservative Government before it, the Labour Government did not support the progression of Savage's bill between 2024–26, despite the Labour Party endorsing its "ambition and objectives" in May 2023. In January 2025, the Labour Government committed to alternative measures, having whipped against the bill's progression to committee stage.[16]

Ahead of a new parliamentary session beginning on 13 May 2026, Zero Hour called on MPs to enter the private members' bill ballot, which was drawn on 21 May 2026,[17] and then choose to advance a Nature and National Security Bill.[18] The successful MPs in that ballot have since been asked to support the bill.

Activities

Campaign work

Zero Hour's public campaign activity has combined parliamentary lobbying with supporter-led constituency organising, campaign films, public briefings, exhibitions, letter-writing tools and commentary on related environmental legislation and policy.[19] It has also supported the National Emergency Briefing on the climate and nature initiative, plus the related People's Emergency Briefing campaign.[20][21]

Zero Hour supporters, Hugh Fearnley-Whittingstall, Tori Tsui and Dominique Palmer in January 2025.
Zero Hour ambassadors, Hugh Fearnley-Whittingstall, Tori Tsui and Dominique Palmer on College Green, outside the UK Parliament (January 2025).

A recurring focus of Zero Hour's parliamentary work has been the new session private members' bill ballot. Over 2024, the organisation and its supporters contacted candidates ahead of the ballot on 5 September 2024.[22][23] Savage was successful in the draw, and selected the Climate and Nature Bill as her chosen legislation.[24][25]

Zero Hour has critiqued government announcements and legislation on climate and environmental matters, such as the nature implications of the Planning and Infrastructure Bill[26][27] and climate concerns related to continued North Sea oil and gas production.[28][29] The organisation has also supported certain legislative proposals such as Clive Lewis' Water Bill in April 2025.[30][31][32]

It provides analysis to parliamentarians and the public on legislative developments, creates digital MP lobbying tools,[33] organises exhibitions (such as its Letters from the Global South project),[34] runs lobby days (such as its children's lobby in Parliament Square in September 2021),[35] hosts public forums (such as its town hall in Tewkesbury in June 2022),[36] organises webinars and events (such as its election husting in Holborn and St Pancras in June 2024)[37] and participates in mass-lobbies (such as Restore Nature Now in June 2024 and Act Now, Change Forever in July 2025).[38][39][40]

Zero Hour's campaigning has also incorporated international and global justice themes, including commentary on COP summits, climate finance, the Paris Agreement, biodiversity agreements, and initiatives such as its Letters from the Global South exhibition.[41][42]

Policy development

Zero Hour provides analysis and advice to MPs through the Climate and Nature Crisis Caucus (CNCC),[43] which it serves as secretariat.[44][45] It also worked with MPs and Peers to seek to amend government bills, such as the 2021 Environment Bill.[46]

It has organised UK-wide political initiatives such as the Nature and Climate Declaration, which was debated in the House of Commons in November 2022,[47] and has published reports that were launched in Westminster, including Net Zero: The Ambition Gap and Creating a Nature-Rich UK.[48][49]

Members of the then Shadow ESNZ and EFRA Teams supporting Olivia Blake's introduction of the CAN Bill: (L-R) Alex Sobel, Olivia Blake, Daniel Zeichner, Ed Miliband, Baroness Blake, Jim McMahon and Kerry McCarthy (House of Commons, May 2023).
Members of the then Shadow ESNZ and EFRA Teams supporting Olivia Blake's introduction of the CAN Bill: (L-R) Alex Sobel, Olivia Blake, Daniel Zeichner, Ed Miliband, Baroness Blake, Jim McMahon and Kerry McCarthy (House of Commons, May 2023).

Zero Hour has stated that it maintained sustained cross-party parliamentary support via the Climate and Nature Bill between 2020 and 2026.[50] The organisation has also argued that a number of climate and nature measures subsequently adopted or announced by the Labour Government reflected proposals advanced during that private member's bill campaign.[51] These include the introduction of an annual State of Climate and Nature statement to Parliament by the Secretary of State for Energy Security and Net Zero Ed Miliband on 14 July 2025,[52][53] closer coordination between climate and nature advisory bodies and government departments,[54] increased consideration of overseas emissions and ecological impacts,[55] expanded public engagement initiatives on net zero and nature policy,[56] and the development of a revised statutory Environmental Improvement Plan.[57]

The Government published Unlocking benefits for people, nature and climate on 14 July 2025, a joint DESNZ and DEFRA policy paper setting out actions to address climate change and biodiversity loss together in England.[58] It stated that "there is no route to tackling climate change that does not involve nature, and no pathway to nature recovery that does not take into account climate change".[59] Zero Hour had long described the Climate and Nature Bill as "the only proposed legislation before the UK Parliament that ensures a comprehensive and joined-up approach to the climate and nature crisis".[60]

(L-R) Nathalie Pettorelli, George McGavin, Olivia Blake, Ruth Jonesand Kerry McCarthy at Zero Hour's Labour Party conference fringe event (Liverpool, October 2023).
(L-R) Nathalie Pettorelli, George McGavin, Olivia Blake, Ruth Jones and Kerry McCarthy at Zero Hour's Labour Party conference fringe event (Liverpool, October 2023).

Zero Hour has also campaigned within party political spaces, including activity around Labour Party, Green Party and Liberal Democrat conferences,[61][62] and engagement with the wider Labour movement. For example, Zero Hour worked with Constituency Labour Parties to submit a conference motion supporting a "joined-up, science-led just transition plan” at the 2023 Labour conference, reporting that the "Climate change and ecology" motion received more than 72,000 delegate votes at that time.[63][64]

Climate and nature priorities

Beyond the Climate and Nature Bill, Zero Hour has campaigned on three priorities it describes as interconnected: restoring nature as a national security concern, strengthening climate adaptation for homes and communities, and delivering long-term energy security through renewable transition rather than expanded fossil fuel production.[65] The organisation has called on the UK Government to reject further North Sea oil and gas development, citing energy independence from renewables as the more resilient path.[66]

Reception

Zero Hour's campaigns have attracted coverage across national media and endorsements from scientists and public figures. BBC News[67] and The Guardian[68] reported on the Climate and Nature Bill's second reading in January 2025 when Labour MPs were directed to oppose its progression. Forbes[69] and The BMJ [70] have also covered its efforts, alongside The Ecologist,[71] Byline Times,[72] Business Green, The Tablet [73] and Edie.

Zero Hour-supporting MPs campaigning for the CAN Bill at 10 Downing Street, Westminster (July 2024).
Zero Hour-supporting MPs campaigning for the CAN Bill at 10 Downing Street, Westminster (July 2024).

The campaign's activities have received endorsements from public figures, such as wildlife presenter Chris Packham and economist Partha Dasgupta; who was one of over 1,100 scientists[74] and health professionals who signed an open letter calling on MPs to support the Climate and Nature Bill.[75]

Zero Hour, and politicians connected to its campaigns (such as Roz Savage and Alex Sobel),[76][77] have received recognition, including a Charity Film Award from the Smiley Movement in February 2025 for its short film, Toadwatch: What has nature ever done for us?.[78][79][80] It was a finalist, and received a special mention, at the UNDESA-linked Big Syn International Film Festival 2025.[81]

Climate and Nature Bill

The Climate and Nature Bill has been Zero Hour's flagship legislative proposal to date. Zero Hour has campaigned for the bill since 2019, coordinating with MPs and Peers who have presented and co-sponsored it in the UK Parliament between 2020 and 2026. A 2025 House of Commons Library briefing outlines its aims.[82] During the bill's second reading debate, MPs referred to Zero Hour as the campaign group behind the bill and debated both the scale of public support and concerns about the bill's proposed mechanisms.[83]

(L-R) Dale Vince, Chris Skidmore, Tracy Brabin, Alex Sobel, Nathalie Pettorelli and Miatta Fahnbulleh at Zero Hour's Labour Party conference fringe event (Liverpool, September 2024).
(L-R) Dale Vince, Chris Skidmore, Tracy Brabin, Alex Sobel, Nathalie Pettorelli and Miatta Fahnbulleh at Zero Hour's Labour Party conference fringe event (Liverpool, September 2024).

Support

According to the organisation, as of February 2026, approximately 2,800 organisations, politicians[84] and scientists,[85] and 75,300 members of the public, supported the bill.[86] Supporters include major conservation charities such as the National Trust and Friends of the Earth, alongside academics, religious leaders, trade unions, farming groups,[87] businesses[88] and local government bodies.[89] Zero Hour also reported that 386 local councils had passed motions supporting the bill,[90] and 192 MPs had pledged their support. Zero Hour promoted public support for the bill through petition campaigns,[91] letter-writing initiatives[92][93] and public events.[94]

Opposition

The bill faced opposition from Labour ministers who sought removal of clauses requiring UK compliance with international climate targets,[95] and from many Conservative MPs who criticised the proposed citizens' assembly as "undemocratic".[96] The National Federation of Builders opposed the bill as "well-intentioned" but likely to lead to "unintended consequences that may cause more harm than they solve".[97] In addition, right-wing commentators raised economic concerns online, although the Countryside Alliance (which does not support the bill) characterised some of these criticisms as "ill-founded".[98] A similar legislative proposal, a 'Living Planet Bill', has been proposed but not published by WWF-UK.[99]

Nature and National Security Bill

MPs including Roger Gale attending a CAN Bill briefing with Zero Hour ambassadors Paul Behrens and Nathalie Pettorelli in the House of Commons (January 2025).
MPs including Roger Gale attending a CAN Bill briefing with Zero Hour ambassadors Paul Behrens and Nathalie Pettorelli in the House of Commons (January 2025).

In May 2026, on the day of the 2026 King's Speech,[100] Zero Hour began campaigning for a Nature and National Security Bill, which framed biodiversity loss, ecosystem degradation and climate impacts as matters of national resilience and public security.[101]

The campaign stated that worsening climate impacts, declining ecosystems[102] and food insecurity[103] posed risks to the UK's economic stability, infrastructure and public health.[104] The bill proposal followed the warnings contained in a DEFRA—Joint Intelligence Committee report of February 2026, National Security Assessment on Global Ecosystems.[105][106][107]

According to Zero Hour, the legislation would establish a Strategic Nature Network to restore and connect ecosystems across the UK, while formally recognising key ecosystems as nationally significant infrastructure.[108] It also called for a Resilience and Adaptation Commissioner to coordinate climate adaptation policy across government departments, and a National Nature Jobs Strategy to support employment linked to ecosystem restoration and resilience.[109][110] When the campaign launched Paul Behrens said:

The collapse of our natural world is a direct threat to the UK's national security. From food security, health and the economy, nature underpins our everyday lives.[111] By failing to protect our ecosystems, we are putting all we care about at risk.[112] Nature must be recognised as national infrastructure so that it is prioritised and funded as an essential pillar of UK security. The [bill] is a science-led response to this threat. Not only will it protect us, it will help us build a more resilient future.[113]

The campaign drew on recommendations from John Lawton's 2010 review, Making Space for Nature,[114] which argued that ecological networks should become "more, bigger, better and joined", and cited examples of nature-based infrastructure planning.[115] The proposal was supported by the National Trust, The Wildlife Trusts,[116] Wildlife & Countryside Link and Rebuilding Nature alliance. It was announced on 13 May 2026, ahead of the House of Commons private members' bill ballot on 21 May 2026.[17] Mya Rose Craig has said:

Every day, we hear the same story: crisis, conflict, rising bills and over stretched public services. We have the chance to deliver something bigger than another short term fix. A plan to protect communities, strengthen resilience, and give people hope for the future. We're calling for the Nature and National Security Act, a new law that responds to the threats the UK faces and [will] secure more affordable food, safer homes and better health.[117]

Organisation

Zero Hour is led by co-executive directors Amy McDonnell and James Sutton. The organisation consists of non-executive directors, staff and volunteers, including Ron Bailey, working across policy development, political advocacy and grassroots campaigning. Former members of the Zero Hour team have included Charles Secrett[118] and campaigner Oliver Sidorczuk.[119]

Zero Hour ambassadors include Paul Behrens,[120] Mya-Rose Craig,[117] Hugh Fearnley-Whittingstall,[67] Clover Hogan, Joycelyn Longdon,[121] Caroline Lucas,[122] George McGavin,[123] E.J. Milner-Gulland,[124] Dominique Palmer,[125] Charles Perry,[126] Nathalie Pettorelli,[120] Jonathon Porritt,[126] Etienne Stott,[127] Hugo Tagholm,[128] Tori Tsui[125] and Char Love.[129] Deborah Meaden and Chris Packham are also supporters.[130][131]

Its funding is received through donations from individuals and grant-making trusts, including the Polden-Puckham Charitable Foundation,[132] Joseph Rowntree Charitable Trust,[133] Esmée Fairbairn Foundation,[134] Andrew Wainwright Reform Trust,[135] Marmot Charitable Trust[136] and Frederick Mulder Foundation.[4]

See also

References

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