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Citizens' assembly on climate

A randomly selected, demographically representative group of residents learns from experts, deliberates and recommends climate policy to decision makers.

Start small

Run a one-day local climate citizens' jury on one concrete question (for example, how should our town cut transport emissions): 2 to 3 months to plan, 20 to 40 randomly selected residents via a postal lottery with quotas, 1 independent facilitator, 3 to 4 expert speakers, budget roughly the cost of venue, food, childcare and a stipend per member. Get the council to commit in writing to publish a response to every recommendation before you start.

The problem

Ambitious climate policy needed to keep warming near 1.5 degrees stalls because elected politicians fear backlash and the public feels unheard; citizens' assemblies build informed, cross-partisan public mandates for faster emission cuts.

Where it fits

Has worked at national level (Ireland 2016 to 2018, France 2019 to 2020, UK 2020) and in local councils (Camden 2019). Thrives when a government or parliament commissions it with a clear question, members are drawn by sortition with quotas (gender, age, income, education, region), members are paid and supported, independent facilitators run it, a balanced evidence programme is given, and the commissioning body commits up front to respond publicly to every recommendation. Needs a budget, several weekends of members' time and a credible follow-up route (parliamentary committee, action plan or citizen review panel).

The principle underneath

Random selection gives a microcosm of the public free of electoral and lobbying pressure; structured learning and facilitated deliberation let ordinary people weigh trade-offs; strong supermajority recommendations then give politicians cover and legitimacy to act on measures they would otherwise avoid. Impact depends on a binding or public duty to respond.

A pattern in nature

Honeybee swarms choose a new nest site by having many scouts independently assess options and 'debate' through dances until a quorum forms, a collective decision that outperforms any single bee.

Who to call

Involve (UK, ran Climate Assembly UK); Sortition Foundation (random stratified recruitment); newDemocracy Foundation (Australia); DemNext / Democratic Society; KNOCA, the Knowledge Network on Climate Assemblies; Camden Council climate team (local council example); Irish Citizens' Assembly secretariat.

Watch out for

No up-front commitment on how recommendations will be handled, so they are cherry-picked; question framed too broadly or too narrowly; organisers or speakers seen as biased; one-off assemblies with no follow-up body; leaders promising to adopt proposals 'without filter' and then filtering, which damages trust more than not asking; under-paying members so only the comfortable can attend; too little time for complex topics.

Where it comes from

Draws on ancient Athenian sortition and modern deliberative democracy (citizens' juries, planning cells from the 1970s). Ireland's 2016 to 2018 Citizens' Assembly became the reference climate case; France's Convention Citoyenne and Climate Assembly UK widened it; local councils such as Camden added follow-up citizen panels. Open method, freely shared by practitioners; follow OECD good-practice principles for deliberative processes.

Where it's worked

  • London Borough of Camden, UK · July 2019; follow-up panel to 2025

    The UK's first citizens' assembly on the climate crisis agreed 17 proposals, endorsed by councillors, which shaped the Camden Climate Action Plan 2020 to 2025; a 15-person Climate Citizen Panel reviewed progress and the council published five annual reviews.

    DocumentedSource

  • United Kingdom (national), Climate Assembly UK · January to May 2020; report September 2020

    108 randomly selected citizens commissioned by six parliamentary select committees produced a 556-page report on reaching net zero by 2050 (frequent flyer levy, petrol and diesel car sales ban by 2030 to 35, less meat and dairy, nature-based removals). Government declined a point-by-point response; influence judged agenda-setting.

    DocumentedSource

  • France (national), Convention Citoyenne pour le Climat · October 2019 to June 2020; law passed 2021

    150 citizens chosen by sortition produced 149 proposals to cut emissions 40% by 2030; the President backed 146, a Climate and Resilience law passed in 2021, but government assessment estimated it delivers half to two thirds of the target and members rated the follow-up 3.3/10.

    Peer reviewedSource

  • Ireland (national) · 2017 sessions; follow-up 2019

    99 randomly selected citizens passed climate recommendations by 80%+ majorities, including a carbon tax and agricultural GHG tax. A Joint Oireachtas Committee on Climate Action reported in March 2019, the Dail declared a climate and biodiversity emergency in May 2019 and a national Climate Action Plan followed in June 2019. Peer-reviewed analysis describes it as the most consequential citizen-centred environmental policy experiment to date.

    Peer reviewedSource

Where it failed

France: the Convention Citoyenne pour le Climat agreed 149 proposals and President Macron promised to take forward 146, but he vetoed three (a constitutional preamble change, a 4% dividend tax and a 110 km/h motorway limit) and Parliament weakened others, for example limiting the domestic flight ban to routes with a rail alternative under 2.5 hours instead of 4. The government's own impact assessment put the resulting 2021 law at half to two thirds of the 40% target and members scored the follow-up 3.3 out of 10. UK: Climate Assembly UK's 556-page report (2020) never received a point-by-point government response, and an independent review judged its influence 'agenda-setting at best'.