Channel your marketing & sales skills into climate impact.
For marketing, sales and business-development people at any stage of their career who want purpose-driven work: real projects with vetted climate ventures, all under professional management, on a commitment that fits your life.
Meaningful work, on your terms
You take on real climate marketing and business-development work with carefully vetted ventures, from senior experts who lead our Strategy Sprints, to people earlier in their careers who help get the day-to-day sales and marketing done on our managed support model. Whatever your level, you work inside a professionally managed team, so the experience is structured, supported and genuinely good for your own development.
- Open to any level of sales & marketing experience
- Always under professional management and AI-powered tools
- Matched to work that suits your strengths and goals
- A real chance to build skills on live climate projects
A tier ladder that recognises your contribution
As you complete projects and build tenure, you progress through four tiers, each unlocking deeper recognition, credentials and opportunity.
You’re onboarded, matched to your first venture, and getting hands-on with the CML method.
You’ve delivered impact and are taking on broader scope and more responsibility.
A trusted, experienced contributor who shapes strategy and mentors newer volunteers.
Our most committed leaders, helping steer CML and unlock the next wave of climate impact.
Recognition & credentials
A LinkedIn-shareable impact credential at each tier, inclusion in the volunteer directory, and a monthly volunteer spotlight.
Impact certificates & references
Impact certificates issued at each three-month review, plus references and external recognition for your contribution.
Development & opportunity
Skills development and training, and access to paid-work opportunities as CML grows.
What makes a great CML volunteer
We use this framework for matching, development and progression, so the right people work on the right problems, and grow as they go.
CVP analysis
Getting to the heart of a venture’s client value proposition, fast.
Storytelling to positioning
Turning a complex climate solution into a sharp, resonant market position.
Pipeline build
Designing marketing and sales pipelines that actually convert.
Sales management
Running a disciplined commercial process from first contact to close.
Strategic focus
Knowing what matters most right now, and what can wait.
Resourcefulness
Making meaningful progress with lean budgets and small teams.
Training & learning
Through our partnership with AimHi Earth, volunteers get access to free, live climate courses, building the climate fluency that makes great climate marketers. CML-specific training is in development, and everyone works under professional management, so there is always someone to learn from.
Senior experts and rising talent, side by side
Our Strategy Sprints are led by senior specialists. Day-to-day implementation on the managed support model is a brilliant place for people earlier in their careers to build real skills, always guided by professional management. Tell us about your experience below and we will match you to the right kind of work.
Start your applicationApply to volunteer
A few questions about you, your experience and where you would like to grow. There are no wrong answers; we welcome applicants at every level. Fields marked * are required.
Put your skills behind the climate fight
Join a global community of marketing and sales people at every level, delivering professional-grade growth where it’s needed most, all under professional management.