The mission of the Collaborative is to mobilize international action to protect child health and development from the impact of climate change and environmental degradation.

The Collaborative is a multi-stakeholder initiative established in 2023 that provides a shared vision, identity and platform to amplify the work of its partners to protect children’s environmental health. Partners of the Children's Environmental Health Collaborative are united around a common vision – that all children deserve to grow up in a clean, healthy and sustainable environment – and believe that working together will help get there faster.

The Collaborative draws from existing global frameworks and partner resources to support and galvanize collective action. The Collaborative is not a separate legal entity, it does not develop intergovernmental policy, and is not a financing mechanism.