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We live on an interconnected planet. We share one Earth, with one atmosphere and one ocean.
Our weather and climate and the water cycle know no national or political boundaries. International cooperation is essential.
This philosophy has driven the work of the world's meteorological community since 1873 and will guide us as we translate science into services for society for present and future generations.
World Meteorological Day 2024 takes place during WMO's 151 th anniversary. It highlights past achievements, present progress and future potential - from the late 19th century telegraphs and shipping forecasts to supercomputers and space technology.
Throughout this time, National Meteorological and Hydrological Services have worked around the clock to collect and standardise data which underpin the weather forecasts we now take for granted. The history of WMO data exchange is a remarkable story of scientific vision, technological development and, most of all, of a unique system of cooperation to serve society.
The anniversary also serves as a reminder of our changing climate. The International Meteorological Organization – the predecessor of the World Meteorological Organisation – was established in 1873 in an era when pollution from industrial and human activities was at its beginning.
As a result of heat-trapping greenhouse gases, the average global temperature is now more than 1° Celsius higher today compared to 150 years ago. Our weather is more extreme, our ocean is warmer and more acidic, sea levels have risen and glaciers and ice are melting. The rate of change is accelerating. We need urgent action now to slash emissions and to ensure that future generations can both survive and thrive on our planet.
The good news is that rapid scientific and technological advances have greatly improved the accuracy of weather forecasts and life-saving early warnings. Big data is being exchanged more freely among a wider community than ever before, and there are new tools including machine learning and Artificial Intelligence.
There has been significant progress to monitor, simulate and project the global climate to support decision-making.
Our weather, climate and water cycle will be different in the future than in the past. Weather, climate and hydrological services will help us tackle the associated challenges and seize the opportunities.
Since 1961, the World Meteorological Organisation has been celebrating World Meteorological Day with a different theme selected for each year.
2013 Watching the weather to protect life and property: Celebrating 50 years of World Weather Watch
2012 Powering our future with weather, climate and water
2011 Climate for you
2010 60 years of service for your safety and well-being
2008 Observing our planet for a better future
2007 Polar Meteorology; Understanding Global Impact
2006 Preventing and mitigating natural disasters
2005 Weather, Climate, Water and Sustainable Development
2004 Weather, Climate and Water in the Information Age
2003 Our Future Climate
2002 Reducing Vulnerability to Weather and Climate Extremes
2001 Volunteers for Weather, Climate and Water
2000 The World Meteorological Organization - 50 years of service
1999 Weather, climate and health
1998 Weather, oceans and human activity
1997 Weather and water in cities
1996 Meteorology in the service of sports
1995 Public weather services
1994 Observing the weather and climate
1993 Meteorology and the transfer of technology
1992 Weather and climate services for sustainable development
1991 The atmosphere of the living planet Earth
1990 Natural disaster reduction: how Meteorological and Hydrological Services can help
1989 Meteorology in the service of aviation
1988 Meteorology and the media
1987 Meteorology: a model of international cooperation
1986 Climate variations, drought and desertification
1985 Meteorology and public safety
1984 Meteorology aids food production
1983 The Weather observer
1982 Observing the weather from space
1981 World Weather Watch as a tool for development
1980 Man and climatic variability
1979 Meteorology and energy
1978 Meteorology and research for the future
1977 Weather and water
1976 Weather and food
1975 Meteorology and telecommunications
1974 Meteorology and tourism
1973 One hundred years of international cooperation in meteorology
1972 Meteorology and human environment
1971 Meteorology and human environment
1970 Meteorological education and training
1969 The economic value of meteorological services
1968 Meteorology and agriculture
1967 Weather and water
1966 World Weather Watch
1965 International cooperation in meteorology
1964 Meteorology as a factor of economic development
1963 Transport and meteorology (in particular, application of meteorology to aviation)
1962 Contribution of meteorology to agriculture and food production
1961 Meteorology - general themes
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