GAHP (Global Alliance on Health and Pollution) is a collaborative body made up of more than 60 members and dozens of observers that advocates for resources and solutions to pollution problems. GAHP was formed because international and national level actors/ agencies recognize that a collaborative, multi-stakeholder, multi-sectoral approach is necessary and critical to deal with the global pollution crisis and resulting health and economic impacts.

In 2012, Pure Earth initiated the alliance together representatives from The World Bank, UNEP, UNDP, UNIDO, Asian Development Bank, the European Commission, Ministries of Environment and Health of many low and middle-income countries to formulate strategies to address pollution and health at scale. GAHP has proven its effectiveness and incorporated as a foundation in 2019 in Geneva, Switzerland.