The World Meteorological Organization is a specialized agency of the United Nations that currently has 193 member states and territories. It is the authority for everything concerning the state and evolution of the Earth's atmosphere, its interaction with land and oceans, the weather and climate it creates, and the resulting distribution of water resources. WMO facilitates the free and unrestricted exchange, in real or near real time, of data, information, products and services that enhance human security, economic well-being and environmental protection, in real or near real time.