Some 2.1 billion people - one in four on earth - lack safe access to drinking water, and 3.4 billion lack safe sanitation at home, according to the WHO/UNICEF Joint Monitoring Programme report published in August 2025. With those figures as backdrop, Christians, Muslims, Jews, Hindus, Bahá’ís, and others gathered at the House of Religions in Bern, Switzerland, on 22 March - UN World Water Day - and signed a joint declaration calling on religious communities worldwide to defend water as a human right and a public good.