On the occasion of World Meteorological Day 2009 on 23 March, WMO is calling attention to the interaction of weather patterns, climate and air quality. Gases and particles emitted to the atmosphere affect people’s health, as well as weather and climate.
The theme of this year’s World Meteorological Day is “Weather, climate and the air we breathe” and highlights the work of its 188 Members’ National Meteorological and Hydrological Services in air quality data, research and forecasts. It is also the theme of the January 2009 WMO Bulletin.
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