Throughout the world and in the World, water insecurity and climate change both disproportionately affect frontline communities—those who are impacted first and worst from climate change. Historically disadvantaged and marginalized communities, including rural communities, low-income communities, and communities of colour, often suffer the most from environmental injustices related to climate change and lack of safe and reliable water from household and community water systems. However, the intersection of these challenges—the impacts of climate change on our ability to equitably meet the needs for water in overburdened and underserved communities moving forward—is not well documented or broadly understood.