Sustainable Brand Retreat

Internal Communications

ClientEarth is one of the most ambitious environmental charities in the world. They have a unique approach to climate action – using the law to create powerful change that protects life on Earth.

ClientEarth and Cheerful Twentyfirst share a common ethos; our fierce and active commitment to a greener, more sustainable planet. Together, we created an impactful brand retreat with sustainability at the heart of the project.

Through carbon measurement and careful mitigation, we reduced the projected emissions footprint by almost 50%.

Our Approach

The majority of ClientEarth staff joined during the pandemic. This event needed to bring them together and create opportunities to discuss the challenges and changes to the organisation, whilst reinforcing ClientEarth’s purpose and culture.

The brief was clear. Introduce the new CEO, embed ClientEarth’s values, and reinforce the sense of community across the organisation. Our experiential and sustainable event concept was designed to bring new and established colleagues closer together. Fun-fuelled and collaborative, the plenary sessions and breakouts series saw guests take part in everything from baking challenges to treasure hunts to forge stronger team relationships across all parts of the organisation.

After two days, delegates left the brand retreat with a renewed sense of belonging and a clear vision on the direction and ambitions of ClientEarth: combining thousands of individual voices into one powerful force for change.

This event reflected their wider vision to protect all life on Earth. Together with ClientEarth, we worked with an environmental and sustainable event ethos throughout all stages of the planning and delivery.


We measured our estimated carbon impact at proposal stage to anchor key decisions throughout the planning process, and then again once the project had been delivered. Working closely with ClientEarth meant we were able to make significant mitigations and reductions within delegate travel, catering, stage creation, and ground transport. 


A 48.6% reduction in forecasted carbon emissions

I would definitely recommend working with Cheerful Twentyfirst. We’ve been really impressed by their professionalism, recognising that we, as an organisation, do this as our day job. While we don’t run events, we do look a lot at sustainability, and there was a real willingness and openness to learn and to be challenged.

Internal Communications Director, ClientEarth

ClientEarth’s continued success to enact global changes aligns with our own drive to produce excellent work that’s fundamentally good for the planet.

Learn more here