Climate volunteer roles

Help a growing energy education charity and bring financial rigour to how we manage and grow our impact.

About us

Curieus Games CIC is a UK Community Interest Company, in the process of converting into a CIO (Charitable Incorporated Organisation). Our mission is to raise energy literacy through play. We make energy and climate education fun and accessible. Our vision is to inspire and attract young people to work in the energy sector.

Our flagship programme, Megawatt, consists of an energy-based educational card game supported by a series of workshops. The object of the programme is to engage students on energy and sustainability through gamification and ethical debates. We deliver the programme to primary and secondary schools across the UK, with 30 schools receiving the Megawatt programme in the 25/26 academic year. Schools receive a full day of workshops, the full suite of Megawatt resources, and training to support teachers to integrate Megawatt into curriculum teaching.

We offer our programme to schools for free. We work with energy developers and other organisations to fund our work in schools, delivering community engagement and social value on their behalf. We’ve built partnerships with several high profile energy developers in offshore wind, solar, batteries and nuclear, as well as winning grants from the National Lottery and the Royal Academy of Engineering. We already have funding secured to deliver to 50 schools in the upcoming academic year.

Megawatt has also been translated into French and Polish and is currently being rolled out to schools in France and Poland through partnerships with local institutes.

You can see more about the work we do here - www.megawatt.game

The next chapter

Curieus Games is converting from a Community Interest Company into a Charitable Incorporated Organisation (CIO). As a charity, we will have access to more sources of funding, giving us an opportunity to grow our impact by reaching more schools and developing more resources to teach about the energy transition.

To lead that next chapter, we're building a founding board of trustees to govern the charity into the next phase of our journey and build on the success we’ve had so far.

The role

As Treasurer, you'll be the person who makes sure the charity grows on solid financial footing — guiding our reporting, risk management and financial strategy as we scale from 30 schools to hundreds. You'll bring:

• Experience in a senior financial role in a charity, not-for-profit or business
• A strong understanding of charity financing, reporting and risk management
• Experience with grants, tenders or philanthropic fundraising is welcome, though not essential

Working arrangements

Six board meetings a year, mostly online with occasional in-person sessions — around 3-5 hours a month in total including meetings. It's a three-year term. The role is voluntary and unpaid, with reasonable expenses reimbursed.

More details are in the attached Trustee Information Pack.

Would you like to join our Board of  Trustees of Sheffield and Rotherham Wildlife Trust?

This year we are looking for three people to join our Board of Trustees at our AGM in October 26.

Trustees of the Sheffield and Rotherham Wildlife Trust (SRWT) are volunteers who together lead the organisation in the planning, resourcing and delivery of its activities, so that it can achieve its charitable objectives.  An enthusiastic, committed and active Board of Trustees, with a good range of knowledge, skills, experience and personal qualities is vital to the healthy and effective running of the organisation.

The Board of Trustees:

• lead the strategic development and planning of the Trust

• develop and adopt appropriate policies

• aim to ensure that the Trust is legally compliant and works to best practice wherever possible

• supports, guides and advises the Trust’s staff and volunteers, especially the CEO and the Executive Team

This year, we are especially keen to hear from people who:

Have expertise, knowledge and experience in one or more of the of the following areas:

• Marketing

• Commercial management, business acumen, profit for purpose experience (with reference to our consultancy)

• Green finance.

• Enterprise development

• Income generation

• Legal experience

• Health, Safety and safeguarding policy and compliance

• Have a good knowledge of communities and/or natural environment in Rotherham

• Can represent more of our diverse community in Sheffield & Rotherham

We are also recruiting for a Trustee to be our Treasurer who will have:

• Professional accounting qualification (e.g. ACA, ACCA, CIMA, AAT)

• Ability to analyse proposals and understand financial consequences

• Understanding of financial risk

Skills & Experience

Trustees should demonstrate some or all of the following:

• Passion for nature

• Interest in and enthusiasm for the work of the Wildlife Trust

• Experience of working as part of a decision-making group, board or committee either in a business or voluntary environment

• Experience or knowledge of the legal requirements of a charity

• Local knowledge of the places in which the Sheffield & Rotherham Wildlife Trust operates

• Experience of financial management and budgeting in a business or voluntary environment 

The following areas of expertise are always welcome on the Board:

• Environmental Law/ Protected species

• Land Management and Conservation 

• Community Outreach and Development

• Education & Training, Working with Children and Young People

• Advocacy & Campaigning

• Research: relevant to the work of the Trust

• Fundraising

Your expertise and experience could be vital to delivering our ground-breaking climate action and sustainability E-Save app. We're looking for UK-based people for a range of communications, marketing and multi-media roles.

What will you be doing?

You will join a team helping to launch and promote the E‑Save climate‑action app and improving its content and user experience. 

By supporting creative campaigns, you will also help the team raise the profile of Eco Centre, and support local outreach initiatives, volunteer recruitment and communications, and stakeholder engagement. 

Your work will help people discover and use the app to take practical climate action at home.

What are we looking for?

We are building a team with a range of skills and experience who can provide hands on help on regular basis and be responsive to changing needs.

We’re looking for volunteers with skills in writing, design, graphics video, social media, campaigning, web content, or marketing. Whether you’re experienced or building your portfolio, we welcome creative, proactive team players who can bring ideas, collaborate well, and help us communicate climate action in engaging and accessible ways.

What difference will you make?

Your support will help the E‑Save app be effective and inspire real climate action in everyday life. By helping shape and promote the app and organisation, you’ll make sustainable living more accessible. 

You will be at the forefront of bringing climate action into people’s homes across the UK, making sustainable living appealing – and driving real environmental impact.

We’re looking for full stack developers to help us create a ground-breaking web app that promotes sustainable living and climate action.

You will play a major role in:

• developing the server-side logic;
• ensuring high performance and responsiveness;
• ensuring front-end optimization;
• designing and maintaining database schemas.  

What are we looking for?

Three years web development experience with working knowledge of Python and, preferably Django framework.  Ability to:

• Write clean, efficient, and maintainable code that powers the application's back-end logic;
• Integrate user-facing elements;
• Optimize components for maximum performance & scalability;
• Build & maintain reusable component libraries to ensure consistency.

Preferably with PWA experience. 

What difference will you make?

You will play a key role in delivering this innovative app and in ensuring it reduces carbon footprints, and, inspires and enables sustainable action across the population.

You will be at the forefront of bringing climate action into people’s homes across the UK, making sustainable living accessible and appealing to everyone – and driving real environmental impact.

Humanist Climate Action is a volunteer-led network of Humanists UK members and supporters committed to redefining lifestyles and campaigning for policies that promote low-carbon, ethical, and sustainable living in the light of the degeneration of the Earth’s climate and biodiversity. We aim to bring humanists together to facilitate individual and collective action on these issues.

The Steering Committee is responsible for planning and executing HCA’s work, in line with its aims and policy. The Committee is appointed by Humanists UK’s Director of Human Rights & Advocacy. Its members report to the Chair, and as a whole it is supported and overseen by Humanists UK’s Human Rights & Advocacy Administrator.

We are seeking a dedicated and driven Social Media Lead to join our Committee, to assist in delivering the activities of Humanist Climate Action.

The role will primarily support the committee’s social media output across all its channels, including custom feed posts, uploading images and videos, monitoring threads, posting group updates and news stories, as well as highlighting calls to action.

We’re looking for frontend a web developer to help us create a groundbreaking web app that promotes sustainable living.

You will play a major role in implementing a series of design upgrades to improve the UX and ensure accessibility, browser compatibility and web standards. Your main task will be to convert design ideas into responsive HTML/CSS components.

What are we looking for?

UK based developers with experience of translating design files into clean, semantic HTML/CSS code and establishing component-based architecture. Ability to:

• Convert design mockups/wireframes into responsive HTML/CSS components;
• Build & maintain reusable component libraries to ensure consistency
• Collaborate with designers & developers to translate visual designs into functional code;
• Optimize components for maximum performance & scalability.

What difference will you make?

You will play a key role in delivering this groundbreaking app and in ensuring it reduces carbon footprints, and inspires and enables sustainable action across the population.

You will be at the forefront of bringing climate action into people’s homes across the UK, making sustainable living accessible and appealing to everyone – and driving real environmental impact.

Are you passionate about sustainability? Do you want to make a real impact on household carbon footprints and promote sustainable living? Can you help us crowdsource our innovative E-Save app and outreach programme?

What will you be doing?

To support delivery of the E‑Save app, you’ll help recruit, support and coordinate our growing UK‑based volunteer community. You’ll provide administrative oversight for current volunteers, support ongoing recruitment, and help develop volunteer and HR processes.

 Over time, you’ll contribute to policies, engagement programmes, crowd‑sourcing initiatives, and local pilot volunteers.

What are we looking for?

We’re looking for UK‑based volunteers with experience in HR, volunteer management, or people operations. You’ll help lead volunteer recruitment, onboarding and training; develop HR and volunteer policies; support engagement and wellbeing; and maintain confidential records. 

You’ll need strong organisational and interpersonal skills, knowledge of safeguarding and data protection, and the ability to support a diverse, remote volunteer team.

What difference will you make?

You will lead and/or support the volunteer recruitment and engagement needed to sustain and grow the organisation, and develop the network of experts and contributors that will power E-Save.

You will be at the forefront of innovation, bringing climate action into people’s homes across the UK, making sustainable living part of everyday life.

ClientEarth is looking to add two to three new Trustees to our UK Board of Trustees.

Our Board of Trustees brings together experts from the private sector, B-Corps, non-profits and foundations, law, and the arts to guide and champion the ambition of ClientEarth in the wider environmental movement. They are driven by the urgency of the climate crisis and the relentless destruction of nature, and united in their belief in the law’s essential role in defending people and planet.

We are specifically seeking candidates with significant experience living and working in the EU or Asia-Pacific, given our depth of work in the former and rapid growth in the latter. We are also looking for candidates with the skills and willingness to take up roles on our Finance, Audit, & Investment Committee or our Governance & Risk Committee.

We are seeking outstanding people with diverse insights and experiences to help support this unique organisation in its next chapter. Will you join us?

An online Question and Answer session is scheduled for 10:30 BST / 11:30 CEST, Wednesday 5th August. Click through to the advert on our careers site to find the registration link.

Main duties

The ClientEarth UK Board of Trustees is responsible for agreeing ClientEarth’s overall programmatic and financial strategy; approving the annual budget; and ensuring sound governance, administration, and financial management.

Trustees also have oversight of arrangements for the appointment, supervision, support, appraisal, and remuneration of the Chief Executive Officer and the rest of the Executive Team. Day-to-day management of ClientEarth is delegated to the Chief Executive Officer, who onward delegates certain functions to the Executive Team, as well as members of the Global Leadership Group.

See our Trustee recruitment brochure, below, for further details.

Key requirements

• Knowledge of or a strong interest in conservation, biodiversity, climate change, and/or social justice
• Strategic vision, sound and independent judgment, and an understanding of the opportunities and challenges of working in a global organisation
• Leadership experience, preferably in finance, business, strategic communications, tech, law, or other relevant sectors
• Significant, relevant experience working in the EU or Asia-Pacific

See our Trustee recruitment brochure, below, for a detailed requirements list.

Further Information

UK Trustees serve a three-year term, and will be eligible for re-appointment for one additional term. In exceptional cases, or where necessary to fill a needed skill gap, a Trustee may be offered a third term.

We estimate that Trustees commit on average 8-10 days a year, not including travel.

There is no financial remuneration for Trustees, although Board-related travel expenses may be claimed.

Recruitment timeline

Please read the "Our Hiring Process" section at the bottom of our advert on our careers site for a full overview of our recruitment process. Please note we operate a two-stage application process as detailed below.

• Advertising period: July 13th through to 23:59 BST Tuesday September 15th 2026
• Additional questions submitted by: 18th September 2026
• First round interviews: Early to mid October TBC
• Second round interviews: Late October TBC
• Appointments confirmed by: Early December 2026

ClientEarth values diversity and inclusion and the benefits this brings. We aim to appoint the most suitable candidate at all times and welcome applications from people from all different backgrounds. See our equity, diversity and inclusion journey page for more.

ClientEarth is not a law firm and does not provide legal advice or legal services to third parties.

Join TreeAction as a Conservation Volunteer 

Love being outdoors and want to make a real difference in your community? Join TreeAction and help us care for young trees and improve local green spaces across Sussex.

We’re looking for friendly, enthusiastic volunteers to take part in our relaxed, hands-on conservation sessions. There’s no long-term commitment — just come along when you can and enjoy making a positive impact.

What you’ll do
Help care for newly planted trees by:

• Weeding

• Mulching

• Watering saplings

Sessions take place at:

• Adur Recreation Ground

• Southwick Recreation Ground

• Shoreham Recreation Ground

• Lancing Manor Gardens

What to expect

• Just 2 hours per session, once a month

• No commitment - join in whenever you are available

• No experience needed — full training provided

• Tools supplied

• A welcoming, supportive community atmosphere

What to bring

• Gardening clothes (long sleeves and trousers recommended)

• Sturdy footwear

TreeAction is a non-profit community interest organisation working to plant trees in schools, colleges, and public spaces, while supporting environmental education for young people. By volunteering with us, you’ll be helping to create greener, healthier places for everyone.

You’ll also be joining a growing community of nature lovers and conservationists — with social events throughout the year.

Come grow something meaningful with us 

Volunteer with CAT’s Maintenance Team and gain skills as you help care for CAT’s unique site, our green buildings, and our off-grid sustainable energy systems.

What will you be doing?

As a Maintenance Volunteer you will help to maintain and improve CAT’s unique site. Built on the site of a disused Welsh quarry by a group of inspired volunteers, CAT’s site has a rich and fascinating past. For more than 50 years, CAT has been a place of experimentation, inspiration and learning, where sustainability is embedded into the buildings and landscape.

As a Maintenance Volunteer, you will join the Estates team in caring for and making improvements to the buildings, pathways and infrastructure that are used by staff, students and visitors.

This is a practical role, so previous experience and confidence using a variety of general-purpose tools is desirable. Training and direction will be provided within the Estates Team but a volunteer in this role will need to be proactive and be able to work as part of a volunteer team with minimal staff supervision. This is a perfect role for someone looking to gain practical experience and to build confidence as part of a busy team.

Key elements of the role:

- Open to long term residential volunteers only.

- Support the Estates team with maintenance and repair jobs around site in all weathers. These could include repairs to buildings, routine maintenance such as gutter clearance, monitoring CAT’s off-grid systems and general DIY tasks - Tasks will be uncomplicated and training will be provided.

- Work independently and part of a team on practical tasks.

- Preparation and clear down for practical short courses, Graduate School workshops and events.

- Organise and maintain tools and materials for use across site.

- Support CAT’s Estates team to care for CAT’s unique site.

We’re looking for people who:

- Would like to gain experience working as part of a practical maintenance team.

- Enjoy volunteering and working alongside others

- Have some practical experience and confidence using a variety of general-purpose tools and maintenance processes.

- Are comfortable living as part of a community

- Are proactive, keen to learn and self-motivated

- Are friendly, respectful and trustworthy

- Are reliable and enthusiastic about making a difference

- Have knowledge, interest or a willingness to learn about sustainability and CAT’s work

Full food and board provided.

Applications for the Autumn 2026 placement open.

The deadline for applications is 9 August 2026.

The trial week for this placement will be Tuesday 1st to Friday 4th September 2026

The Autumn 2026 placement will be 19th October – 26 March 2027

For more information and to apply for this fantastic opportunity viait our website   

About Thames21

Thames21 is an environmental charity that works with communities to restore and look after rivers, water and nature across London and the Thames Basin.  We believe that every river should be healthy, thriving and valued by the community it serves.

What We Do:

Empower communities to care for rivers

• We support thousands of volunteers and community groups each year to improve their local waterways and green spaces.

Restore rivers and nature

• We deliver practical river restoration projects that improve habitats, water quality and biodiversity.

Build climate resilience

• We create nature-based solutions that help communities and ecosystems adapt to climate change and reduce flood risk.

The role

We have an exciting opportunity to appoint a voluntary Company Secretary to support our Board of Trustees and help ensure our governance is as strong as the environmental impact we deliver.  Your professional skills will support an ambitious and growing charity making a real difference to rivers, wildlife and people.

We welcome applications from people of all backgrounds and particularly encourage applications from groups currently under-represented in charity governance roles.

The Role

The Company Secretary plays an important role in supporting the effective operation of Thames21's governance.

Working closely with the Chair of Trustees, Chief Executive and Board, you will help ensure that meetings are well organised, decisions are properly recorded and the charity meets its statutory obligations as both a registered charity and company limited by guarantee.

You will be expected to attend four Board meetings and approximately two sub-committee meetings each year, together with occasional planning discussions with the Chair and Chief Executive.  The role is voluntary, although reasonable expenses will be reimbursed.

What You Will Be Doing

• Supporting the smooth operation of the Board of Trustees and its committees.
• Working with the Chair and Chief Executive to plan Board and committee meetings.
• Preparing and distributing agendas and meeting papers.
• Attending meetings and ensuring accurate minutes and action logs are maintained.
• Maintaining key governance records and statutory registers.
• Supporting the filing of statutory returns and governance documents with Companies House and the Charity Commission.
• Advising trustees on governance processes and good practice.
• Assisting with trustee induction and governance documentation.
• Ensuring that the charity complies with its governing document and relevant legal requirements.
• Supporting governance reviews and improvement initiatives as appropriate.

What We Are Looking For

We are seeking someone who has:

• Experience as a Company Secretary, governance professional, trustee, board administrator or in a similar governance role.
• An understanding of company and/or charity governance.
• Strong organisational skills and attention to detail.
• The ability to produce concise and accurate minutes.
• Good judgement and discretion.
• Strong written and verbal communication skills.
• The confidence to provide procedural advice and guidance when needed.
• An interest in environmental issues, community engagement and the mission of Thames21.

Desirable but not essential:

• Experience working with charities, membership organisations, companies limited by guarantee or not-for-profit organisations.
• Knowledge of charity law and Charity Commission requirements.
• An interest in charity governance and governance improvement.

Why Join Thames21?

This role may appeal to an experienced Company Secretary, governance professional, trustee or board administrator looking to use their skills in support of a meaningful environmental cause.  It could suit someone seeking a voluntary role alongside their career or as part of a portfolio of charitable commitments.

This role offers the opportunity to:

• Join a friendly, passionate and professional organisation committed to creating lasting environmental and social impact.
• See the tangible results of your contribution through projects that improve rivers, wildlife habitats and local communities.
• Use your professional skills to support a respected and ambitious environmental charity.
• Work closely with an experienced Board of Trustees and leadership team.
• Gain insight into charity leadership, strategy and governance.
• Build relationships with professionals from across the environmental, water, local government and charity sectors.
• Support practical action on river restoration, biodiversity recovery and climate resilience.

Most importantly, you will help ensure that Thames21 has the strong governance foundations needed to deliver lasting environmental impact.

Time Commitment

Approximately 6–10 days per year, including:

• Four Board meetings annually.
• Approximately two subcommittee meetings annually.
• Preparation time for meetings and governance administration.
• Occasional discussions with the Chair and Chief Executive.

To Apply

Please send your CV and a short covering letter with the reference CS0726 via the Charity Job Website explaining:

• Why you are interested in becoming Thames21's Company Secretary; and
• How your experience and skills would support the role.

Are you a young person aged 18-35 with a passion for ensuring North Devon has a sustainable future? 
 
🌍 Become a Youth Representative for North Devon UNESCO Biosphere 
The North Devon UNESCO Biosphere is part of a global network of over 750 Biosphere Reserves working together to develop innovative approaches to sustainable development, protect biodiversity and culture, and support vital research. 
 
At North Devon Biosphere, we are guided by our new 10-year strategy (2026–2036), 'living up to world class by nature'. Our vision is to ensure that people and nature thrive together, creating a truly sustainable future for our region.
 
🗣️ Why Youth Voices Matter 
We place a high value on the perspectives, ideas, and energy of young people within our Biosphere. We are committed to supporting young adults to become active, engaged members of their communities and to help shape the future of North Devon. 
 
We are seeking one Youth Representative to help bring fresh perspectives, highlight the priorities of younger generations, and contribute to conversations around sustainability, conservation, and community development across the Biosphere. 
 
This is a unique opportunity to be part of a wider movement—connecting with biospheres across the UK and internationally—to amplify youth voices and drive meaningful environmental and social change. 

🙋 Who Can Apply 
This unpaid role is open to individuals who: 

• Are aged 18–35 

• Live, work, or study within the North Devon Biosphere region 

You don’t need to be an expert in sustainability—we welcome applicants from all backgrounds and experiences. We are particularly keen to encourage applications from individuals and communities who are currently underrepresented. 

Working with the England & Wales Wildfire Forum, we are determined - with your help - to be a voice for education and prevention of wildfires to project our wildlife and landscapes.

Make a difference to protecting trees and wildlife in your local area. Help us realise this by becoming a Wildfire Prevention Ambassador.

As a volunteer, you’ll deliver talks and or activities to any school, college, club or workplace you are involved in with the aim of helping prevent the starting of wildfires.

Often triggered by human activity, wildfires in the UK can have devastating consequences for wildlife, habitats, infrastructure and people. And thanks to climate change, the risk is increasing. You’ll receive all the material on wildfires, as well as coaching in how to deliver engaging public talks. All you need is the desire to make a difference!

This role is open to 14-25 year olds. Please contact us to discuss any additional support or adjustments you may need to complete your application.

This role is made possible with support from the NHLF.

Second Life

We partner with communities to collect, trace, and recycle plastic, creating jobs and preventing pollution.​

Our growth so far has been powered by corporate partnerships. But there's significant catalytic and concessional funding available for organizations doing exactly what we do, and right now we're not capturing it. We need the help of a Grant Lead to change that. 

This is a high-leverage role for an experienced development professional who knows the climate, ocean, and circular economy funding landscape, and who can turn that knowledge into successful proposals. You'll pilot the full grant lifecycle from prospecting to reporting, working directly with the CEO and Program Director.

What you'll do:

- Map the global funding landscape relevant to Second Life: bilateral aid agencies, multilateral institutions, climate funds, major foundations, corporate foundations, impact investors offering grant capital, and prize-based funders.
- Build and maintain a prioritized funder pipeline with clear fit assessment, ticket sizes, timelines, and decision-maker contacts.
- Recommend which opportunities to pursue and which to pass on.
- Read and critically review our in-progress and recently submitted grant applications; provide structured written feedback and proposed edits.
- Lead the writing of concept notes, and full proposals.
- Translate field reality (collection sites, collector incomes, recycling pathways) into the language funders use (outputs, outcomes, impact, theory of change, MEL frameworks).
- Own grant reporting timelines and deliverables across all active grants - Partner with marketing on funder-facing communications, impact stories, and thought leadership that strengthens grant competitiveness - Build internal systems: proposal templates, internal library of strong language, proof points and reusable section, AI usage etc. so this function can scale.

Minimum Hours per Week:

4-6 hours per week

Duration:

6+ months