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Research activities focusing on high-impact weather – from basic research in the academic community to operational contributions.
Start date1 June 1998
Sand and dust storms are common meteorological hazards in arid and semi-arid regions. They are usually caused by thunderstorms – or strong pressure gradients associated with cyclones – which increase wind speed over a wide area. These strong winds lift large amounts of sand and dust from bare, dry soils into the atmosphere, transporting them hundreds to thousands of kilometres away. Some 40% of aerosols in the troposphere (the lowest layer of Earth’s atmosphere) are dust particles from wind erosion.
Bulletin nº Vol 64 (1) - 2015
Theme: Environmental challenges
Publish Date: 2 March 2015
As atmospheric CO 2 continues to increase, more and more CO 2 enters the ocean, which reduces pH (pH is a measure of acidity, the lower the pH, the more acidic the liquid) in a process referred to as ocean acidification. Declines in surface ocean pH due to ocean acidification are already detectable and accelerating.
Publish Date: 14 December 2018
Climate science took centre stage as the annual United Nations climate change negotiations, which heard repeated calls for action to rein in global temperature increases or risk irreversible impacts.
Publish Date: 11 December 2018
Switzerland has announced a major contribution to an international initiative to strengthen early warning systems in vulnerable low-income countries to support climate change adaptation, disaster risk reduction and sustainable development. The announcement of 9 million Swiss francs in new funding came at the United Nations climate change conference in Katowice, Poland (COP24).
Publish Date: 10 December 2018
The World Meteorological Organization (WMO) and the Green Climate Fund (GCF) have signed a formal agreement to work together to leverage WMO expertise on weather, climate and water to increase effectiveness of GCF funded activities and support low carbon and climate resilient development.
Publish Date: 28 November 2018
WMO’s Regional Association for South America (RAIII) has agreed on key priorities to improve infrastructure and strengthen capacity of National Meteorological and Hydrological Services (NMHSs) to deliver high impact weather, water and climate services. These are necessary to promote disaster resilience and climate change adaptation in a region which has witnessed severe drought and devastating floods in recent years.
Bulletin nº Vol 64 (2) - 2015
Publish Date: 4 December 2015
By Kyra Bell-Pasht 1 and Dana Krechowicz 2 Over the course of human history, weather patterns have greatly influenced the growth of commerce and communities. But in a world experiencing...
Publish Date: 20 November 2018
Levels of heat-trapping greenhouse gases in the atmosphere have reached another new record high, according to the World Meteorological Organization (WMO). There is no sign of a reversal in this trend, which is driving long-term climate change, sea level rise, ocean acidification and more extreme weather.