The document discusses several United Nations organizations that help children and the environment: - UNICEF works to protect children's rights and ensure their well-being, health, education, equality and protection. - The UN has a Convention on the Rights of the Child that sets rules for treating children, which countries are encouraged to follow. - Other UN organizations discussed are UNESCO, which promotes international cooperation in education, science and culture; and the WHO, which aims to achieve the highest level of health worldwide. - Non-UN groups like Greenpeace and WWF are also mentioned, with Greenpeace advocating for environmental protection and WWF working toward conservation and sustainability.