Empowering businesses to reduce carbon, engage employees, and save costs

Accelerate your businesses carbon reduction plan by one tonne per employee, through a practical, team-focused approach.

How the One Tonne Challenge works

You’re not alone if you’re struggling to find direction in sustainability. No matter your challenge, we can overcome it together…

Step 1

Follow weekly guidance

Employees receive guidance to make sustainable changes in all areas of their personal and work life.

Step 2

Track your progress

Monitor individual and business achievements through a personalised dashboard. Track your progress towards each milestone.

Step 3

Celebrate success

Earn recognition and showcase your organisation’s impact with shareable badges. Encouraging all colleagues to join the challenge.

Why your business should take part

Almost all large companies will prioritise sustainable supply chains, in 2025. Making environmental sustainability a critical factor in business procurement.
Companies risk losing clients or missing opportunities due to poor sustainability performance.
Don’t risk being left behind – make sustainability your competitive advantage.

Make a positive environmental impact 

Demonstrate measurable CO2e reductions.


Achieve company milestones from 5-5,000+ tonnes saved collectively.

Engage and empower your workforce 

Weekly sustainability guidance for practical action.

Milestone badges and shareable recognition for employee contributions.

Save and sustain 

Identify cost-saving opportunities in all areas of sustainability.

Transferrable actions sustained between home, workplace and everywhere in between.

PRICING

Flexible pricing plans

Whether you’re an individual, a small team, or a growing enterprise, we have a plan that aligns perfectly with your goals.

Your monthly subscription

Features

Packed with useful tools

You’re not alone if you’re struggling to find direction in sustainability. No matter your challenge, we can help…

Branding

Make your platform your own and instantly recognisable to your employees with familiar colours and logos.

Carbon activities

Designed to fit seamlessly into your workplace, carbon activities that are completed to make a difference.

Carbon tracker

An honest method to track true carbon savings in real-time, giving all users vital feedback on their actions.

Milestones

Celebrate with your network and share your employees progress by unlocking milestone achievements.

Available to all

A dynamic and interactive platform available on desktop, tablet, mobile and even a downloadable app.

Shareable assets

Promote your achievements with your network, including the launch of your participation.

Corporate responsibility

Let the One Tonne Challenge help direct and advance essential environmental progress.

Push notifications

Need an important message to reach your employees fast? Utilise our push notification to communicate updates.

Branding
Branding
Read More
Make your platform your own and instantly recognisable to your employees with familiar colours and logos.
Carbon activities
Carbon activities
Read More
Designed to fit seamlessly into your workplace, carbon activities that are completed to make a difference.
Carbon tracker
Carbon tracker
Read More
An honest method to track true carbon savings in real-time, giving all users vital feedback on their actions.
Milestones
Milestones
Read More
Celebrate with your network and share your employees progress by unlocking milestone achievements.
Available to all
Available to all
Read More
A dynamic and interactive platform available on desktop, tablet, mobile and even a downloadable app.
Shareable assets
Shareable assets
Read More
Promote your achievements with your network, including the launch of your participation.
Corporate responsibility
Corporate responsibility
Read More
Let the One Tonne Challenge help direct and advance essential environmental progress.
Push notifications
Push notifications
Read More
Need an important message to reach your employees fast? Utilise our push notification to communicate updates.

FAQS

Your questions answered

The One Tonne Challenge (OTC) is a 12-month campaign designed to help organisations take their first steps towards reducing their environmental impact. It empowers employees to collectively save 1 tonne of carbon per person annually through practical and engaging team-focused activities.

The OTC is run by Greenredeem, a trusted provider of sustainability initiatives. With extensive experience in driving engagement and measurable change, Greenredeem delivers the tools, guidance, and resources your organisation needs to achieve meaningful environmental progress.

Each week, employees receive personalised communications, via email or push notifications (if using the app), prompting them to participate in carbon-saving activities. These activities encourage long-term behavioural changes, empowering individuals to think differently about their everyday actions and environmental impact.

Participants receive a personalised Carbon Tracker that highlights their monthly and lifetime progress based on completed activities and environmental pledges. Employees can also earn Eco-bits, which can be redeemed for:

  • Planting trees
  • Claiming rewards with one of our chosen reward partners (5 Eco-bits required per reward)
  • Occasional surprise opportunities

Additionally, employees benefit from a clear conscience, shareable badges to celebrate their progress, and transferable behaviours that can help save money both at work and at home.
Yes. The OTC can be tailored to your organisation’s branding, including your logo and corporate colours, ensuring a seamless fit with your identity.
Greenredeem provides a suite of shareable assets, including social media templates, email footers, and website badges. These help you showcase your organisation’s commitment to sustainability and celebrate individual and team progress.
The OTC is built on trust and participation. While we provide a calendar of activities designed to save over 1 tonne of carbon per employee annually, the actual impact depends on your team’s engagement. The campaign’s true value lies in encouraging individuals and organisations to think differently and take practical steps to reduce their impact.
The behaviours encouraged by the OTC, such as reducing energy use, minimising waste, and improving efficiency, are not only good for the planet but can also help save money for individuals and organisations alike.

LAUNCH TODAY

Ready to reach new sustainable heights? Start your free trial today

Experience the ease of automation, the power of analytics, and the impact of seamless integration. Your journey begins now!

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Since 2009, Greenredeem has delivered innovative solutions that create lasting impact, enhancing wellbeing, strengthening environmental credentials, and achieving measurable financial and carbon-saving results.

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Greenredeem Ltd, 5 Bradfield Court, Milton Road, Drayton, Abingdon, Oxfordshire, OX14 4EF