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Publish Date: 1 May 2020
Depletion of the ozone layer, the shield that protects life on Earth from harmful levels of ultraviolet radiation, reached an unprecedented level over large parts of the Arctic this spring. This phenomenon was caused by the continuing presence of ozone-depleting substances in the atmosphere and a very cold winter in the stratosphere (the layer of the atmosphere between around 10 km and round 50 km altitude).
Publish Date: 18 February 2020
Unusual weather and climate conditions, including widespread and heavy rains since October 2019, have contributed to a serious and widespread Desert locust outbreak, which threatening rural food security across East Africa.
Publish Date: 4 February 2020
Climate action will be both a priority and a driver of world affairs through the coming decade, according to United Nations Secretary-General António Guterres.
Publish Date: 7 January 2020
Catastrophic and unprecedented bushfires in Australia have killed more than 28 people, destroyed hundreds of homes and burned hundreds of thousands of hectares of land, causing massive devastation to wildlife, ecosystems and the environment. The fires come after Australia's hottest, driest year on record. They have led to hazardous air quality in major cities throughout Australia, impacted New Zealand and sent smoke drifting thousands of kilometres across the Pacific to South America.
Publish Date: 11 December 2019
The high mountain regions are home to 1 billion people, are the source of freshwater to at least 1.9 billion people and are crucial for regulating the global climate system. Preservation of mountain ecosystem functions is therefore essential to global water, food and energy security.
Coordinating the global system of telecommunication facilities and arrangements for the rapid collection, exchange and distribution of observations and processed information within the framework of the World Weather Watch Programme.
Start date1 June 1967
Publish Date: 25 September 2019
The latest Intergovernmental Panel on Climate Change (IPCC) Special Report highlights the urgency of prioritizing timely, ambitious and coordinated action to address unprecedented and enduring changes in the ocean and cryosphere.