NEW DELHI: According to the World Meteorological Organization (WMO), a United Nations entity, last year was one of the seven warmest on record.
Although La Nia conditions between 2020 and 2022 cooled world average temperatures, 2021 was still one of the seven warmest years on record, according to six international data sets combined by the WMO. La Nia is the term used to describe a large-scale lowering of ocean surface temperatures in the central and eastern equatorial Pacific Ocean. It has a short-term global cooling impact.
Last year, the average worldwide temperature was 1.11 (0.13) degrees Celsius higher than pre-industrial values, spanning the years 1850 to 1900.
According to data provided by the World Meteorological Organization (WMO), last year was the seventh consecutive year, beginning in 2015, when the global average temperature was greater than 1 degree Celsius over pre-industrial levels.
According to the Copernicus Climate Change Service, 2021 was the fifth warmest year on record, slightly warmer than 2015 and 2018. 2021 was the sixth warmest year on record, according to the National Oceanic and Atmospheric Administration (NOAA) and Berkeley Earth.
According to Nasa GISTEMP and HadCRUT, 2021 was the sixth warmest year on record. Last year was the eighth warmest year on record, according to data from the Japanese Meteorological Agency (JMA) Reanalysis Rank 2021.
The discrepancies between the data sets represent the margin of error in determining the global average temperature.
According to data compiled by the UN organization, each decade has been hotter than the preceding one since the 1980s, and the trend is set to continue.
The warmest seven years have all occurred after 2015, with 2016 leading the list, followed by 2019 and 2020. In 2016, a powerful El Nio event occurred, causing global average warmth to reach new highs.
“Because of back-to-back La Nia events, warming in 2021 was less pronounced than in recent years.” Despite this, the year 2021 was warmer than prior years impacted by La Nia. “The year-to-year variability in global average temperatures caused by naturally occurring climate drivers is now far greater than the overall long-term warming as a result of greenhouse gas increases,” stated WMO Secretary-General Petteri Taalas.
“The year 2021 will be remembered for a near-record-breaking temperature of nearly 50 degrees Celsius in Canada, comparable to temperatures reported in Algeria’s hot Saharan desert, exceptional rainfall, and deadly flooding in Asia and Europe, as well as drought in parts of Africa and South America.” “The impact of climate change and weather-related hazards on communities on every continent has been life-changing and devastating,” Taalas added.
According to the India Meteorological Department’s (IMD) Annual Climate Statement 2021, last year was the fifth warmest in the country’s 121-year history, behind 2016, 2009, 2017, and 2010.
In 2021, the annual mean air temperature was 0.44 degrees Celsius above normal, compared to 0.71 degrees in 2016, 0.55 degrees in 2009, 0.54 degrees in 2017, and 0.53 degrees in 2010.
The Paris Agreement intends to keep global average temperature rises to well below 2 degrees Celsius over pre-industrial levels, while also pursuing measures to keep rises to 1.5 degrees Celsius above pre-industrial levels.