WMO Statement on the Status of the Global Climate
WMO, working with UNEP (United Nations Environment Programme), is responsible for the periodic assessments of climate change issued by the Intergovernmental Panel on Climate Change (IPCC). In June 1993, the 45th session of the Executive Council of WMO decided that greater efforts were needed to promote the WMO role as a provider of credible scientific information on climate and its variability and requested that arrangements be made for the regular wide distribution of WMO statements on the status of the global climate. In response to this decision, statements have been provided annually through the WCDMP.
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See the complete series of online available WMO climate statements
Special assessments
At its fifteenth session, held in Antalya, Turkey, in February 2010, the WMO Commission for Climatology decided that climate monitoring activities would henceforth include, inter alia, information gathering and analyses on extreme weather and climate events that might be considered especially relevant in terms of major societal impacts. In this respect, the Commission agreed on a new approach to facilitate, whenever possible, an appropriate scientific description of causes and effects specifically associated with these key events, as a complement to the more general Statements on the Status of the Global Climate, which WMO regularly publishes on a yearly basis in collaboration with its members.
A case study of the boreal winter 2009/2010
During the period from December 2009 to February 2010 extreme conditions were recorded in many places. Strong negative temperature anomalies and heavy and prolonged snow conditions occurred over Europe, the Russian Federation and parts of North America, particularly the United States, and Asia. Other large areas in the northern hemisphere recorded above normal temperatures for the season. This was the case particularly in the Arctic region and Canada, where temperatures reached +6°C above the long-term average in some locations. This Assessment provides an insight into what happened. |
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