Articles by theme

WMO congratulates the three scientists leading the research teams that will share the US$ 5 million grant from the United Arab Emirates Research Programme for Rain Enhancement Science.

  • Masataka Murakami, Visiting Professor from the Institute for Space-Earth Environmental Research, Nagoya University (Japan), for his work on pre- cipitation enhancement in arid and semi-arid regions. Professor Murakami’s project focuses on innovative algorithms and sensors dedicated to identifying the clouds most

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Article published in Volume 51, No. 2, April 2002

For the first few months of its existence, the World Meteorological Organization utilized as its Headquarters the offices of its predecessor, the International Meteorological Organization, which were in Lausanne, Switzerland. On 10 December 1951, the Secretariat was moved to its temporary Headquarters at Campagne Rigot, Avenue de la Paix, Geneva, Switzerland. This building,...



There are no obituaries in the April 2008 Bulletin.


Bulletin nº

Take a look at the cloud photos that are featured on the WMO 2017 calendar and were selected from submissions from around the world. 

Bulletin nº

This will not only require building more resilient energy infrastructure itself, but also creating tools and solutions to better anticipate and mitigate climate risks. In recent years the European Commission (EC) has invested in a series of initiatives including research, projects and innovation that support the development of climate services for the energy sector.

Non-industrial energy demand, especially in mid-latitude countries, is primarily driven by variations in temperature, cloud cover...

Bulletin nº

A budget for carbon?

To monitor a financial budget, one must know balances between income and expenditure. Likewise for carbon, with CO2 in the atmosphere as the relevant “account”, one quantifies inputs (sources) and outputs (sinks). A global carbon budget determines the input of CO2 to the atmosphere by emissions from human activities, balanced by output (storage) in the carbon reservoirs on land or in the ocean. We can write...

Bulletin nº

Climate change a global concern

In 1992, participants of the United Nations Conference on Environment and Development (the “Rio Earth Summit”) adopted the United Nations Framework Convention on Climate Change (UNFCCC), an international treaty aimed at combatting climate change. The ultimate objective of the Convention is to stabilize greenhouse gas (GHG) concentrations "at a level that would prevent dangerous anthropogenic (human-induced) interference with the climate system." It further states "such...

Bulletin nº

“Climate is what you expect, weather is what you get.” What is the difference between weather and climate?

Bulletin nº

Learn more about the WMO process of naming clouds and WMO Technical Regulations. 

Bulletin nº

Warm or cold, polluted or clean, over a mountain or a field, a cloud’s characteristics are key to the success or failure of cloud seeding efforts.