Newsletter Issue 3 (January 2021)



2020 as the second warmest year on record for Hong Kong

In Hong Kong, with eleven out of the twelve months warmer than usual, 2020 was the second warmest year since records began in 1884 with an annual mean temperature of 24.4 degrees, 1.1 degrees above the 1981-2010 normal.

The Hong Kong Observatory Successfully Patented the Design of Automatic Weather Station

With the new design, various meteorological sensors can be housed together in a compact enclosure, solving the problem of installing an ordinary automatic weather station in urban areas where space is limited.

2020 was one of three warmest years on record

The year 2020 was one of the three warmest on record, and rivalled 2016 for the top spot, according to a consolidation of five leading international datasets by the World Meteorological Organization.

Winners of WMO Calendar Competition

WMO congratulates all the winners of its 2021 calendar competition for simply outstanding photographs showcasing the theme “The Ocean, Our Climate and Weather”.

Record-breaking 2020 ozone hole closes (WMO)

The record-breaking 2020 Antarctic ozone hole finally closed at the end of December after an exceptional season due to naturally occurring meteorological conditions and the continued presence of ozone depleting substances in the atmosphere.

Climate change: Extreme weather causes huge losses in 2020

The world continued to pay a very high price for extreme weather in 2020, according to a report from the charity Christian Aid.

Climate change: 2020 in a dead heat for world’s warmest year (BBC)

New data from EU satellites shows that 2020 is in a statistical dead heat with 2016 as the world’s warmest year. The Copernicus Climate Change Service says that last year was around 1.25C above the long-term average.

中國氣象局揭曉2020年十大天氣氣候事件 (in Chinese only)

中國應急管理部發布2020年全國自然災害基本情況 (in Chinese only)


The Arctic Hasn’t Been This Warm for 3 Million Years

As the Intergovernmental Panel on Climate Change has shown, carbon dioxide levels in the atmosphere are higher than at any time in human history. The last time that atmospheric CO2 concentrations reached today’s level – about 412 parts per million –
was 3 million years ago, during the Pliocene Epoch.

The news in the Newsletter will be presented in the originating language only.


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