€25 per tonne CO₂e
Carbon Avoidance
Gold Standard certified projects across the Global South, including Nigeria, Uganda and India, protecting clean energy access and healthier communities for the people who need it most.
Gold Standard · Carbon Removal · Climate Contributions
Fund climate action
Vetted projects. Measurable impact. Your contribution, working.
We built ClimateHero for people who want to take climate action seriously. Measure your footprint honestly. Reduce what you can. Then fund the green transition for the emissions you can't yet avoid. Done in that order, your climate action actually counts.
Robert Sabelström
Founder and CEO
Climate HeroAt Once Upon, we know that everything we do affects our planet, and we're working purposefully towards ambitious climate targets – in close collaboration with our suppliers and through a concrete transition plan. Thanks to ClimateHero, we've gained the structure and tools we needed to both reduce and compensate for our emissions in a way we can stand behind.
Linda Ingolfsdottir
Chief Value Chain & Sustainability Officer
Getting to Net Zero by 2040 is ambitious. But having a transition plan in place, knowing exactly where our emissions come from and what we need to ask of our suppliers, makes it feel real and actionable. ClimateHero gave us the structure to get there.
Pekka Hietalahti
COO
Fund What Matters
Pick the climate solution that speaks to you and put your money behind it.
€250 per tonne CO₂e
Carbon Removal
Carbon capture and storage. Organic waste is turned into durable biochar, locking carbon away for hundreds of years. Active projects in Finland, Ghana, Cameroon and Malaysia are making durable, verifiable carbon removal a reality today.
€250 per tonne CO₂e
SAF
Sustainable Aviation Fuel (SAF). Replace fossil jet fuel with next-generation biofuel, drop for drop. A concrete way to cut emissions from the flights you can't avoid, and to move money from fossil fuels to bio-producers.
Fund climate action every month
10 tonnes. Let's start there.
10 tonnes of CO₂ is roughly the average Western footprint per person, per year. A monthly subscription funds emission reductions equivalent to that through verified projects, while you work on cutting your own.
Gift cards
Climate action, Wrapped.
Give someone a month, six months, or a full year of climate action. A verified contribution in their name, a certificate worth keeping, and a gift that won't end up in a drawer.
Know Your Footprint
Every good climate decision starts here. Calculate your real impact, then take action on it.
Business Emissions
Measure your company's full carbon footprint across all operations, then fund verified climate projects to cover what you can't yet reduce. Reporting-ready.
Lifestyle Emissions
Calculate your full footprint, commit to the changes that matter most, and fund verified projects for the emissions you can't yet avoid.
Flight Emissions
Find out what your flights cost the atmosphere, then replace the same amount of fossil fuel with sustainable aviation fuel.
Car Emissions
Calculate your driving footprint and fund durable carbon removal through biochar.
Event Emissions
Weddings, conferences, festivals: every event has a footprint. Calculate yours and fund climate projects before the last song plays.
We hold ourselves to a higher standard
Not all climate contributions are equal. We only fund projects with real additionality, certified to recognised international standards and independently audited every year since 2018. When you contribute through ClimateHero, you can verify every tonne.