This week’s big environmental stories, (July 29-4 August)
China Meteorological Administration has provided an alarming overview of
wide-ranging climate impacts from sea level rise to melting glaciers in 2021,
with the annual release of its Blue Book on Climate Change in
China (2022) on 3 August.
Highlighting the country’s sensitivity to climate change, the Blue Book finds
that China is warming faster than the rest of the world. Between 1951 to 2021,
China’s average annual surface temperature rose at a pace of 0.26C per decade,
while the global average was 0.15C per decade during the same period. The past
two decades were the warmest for China since the beginning of the 20th century,
while 2021 was the hottest year on record since 1901.
As China gets hotter, it is also becoming wetter. Between 1961-2021, the
average annual rainfall increased by 5.5 millimetres every ten years. But the
distribution of this increased precipitation is uneven across the country:
North China receives more rain than the southern parts.
Extreme weather events are increasing, particularly heat waves and storms. Sea
level rise is also more accentuated in China, increasing by 3.4 millimetres
yearly since 1980, faster than the global average of 3.3 millimetres per year.
In Western China, 2021 witnessed some of the most significant annual glacier
retreats on record. The west end of Urumqi Heyuan 1 glacier retreated 8.5
metres in a year.
China has been publishing the annual climate Blue Book since 2018. The preface
states that providing up-to-date climate monitoring data can assist “all levels
of government to make climate-related policies” with the support of science and
serve public climate communications. The Blue Book is divided into five
sections that cover the atmosphere, hydrosphere, cryosphere, biosphere and the
drivers of climate change.
(Sources: China Dialogue)
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