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.
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.
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.
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.
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.
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