2015-22 on track to be the eight warmest years on record: WMO



SHARM EL-SHEIKH (EGYPT): Fuelled by ever-rising greenhouse gas (GHG) concentrations and accumulated heat, the past eight years (2015-22) are on track to be the eight warmest on record and the year 2022 will possibly be the fifth or sixth warmest year, said the World Meteorological Department (WMO) on Sunday even as the UN annual climate conference (COP27) was inaugurated here to discuss ways to limit warming and minimise its impact through joint global action.
The WMO in its State of the Global Climate report 2022 said the global mean temperature in 2022 is currently estimated to be about 1. 15 (1. 02 to 1. 28) oC above the pre-industrial level (1850-1900 average) making it difficult to meet the goal of keeping warming within 1. 5oC goal by the end of the century.
The report flagged how global warming made every heatwave more intense and life-threatening especially for vulnerable populations, while causing an upsurge in climate change impacts as sea level rise accelerates, European glaciermelt shatters records and extreme weather causes devastation. It said the telltale signs and impacts of climate change are becoming more dramatic, underlining that the rate of sea level rise has doubled since 1993. It has risen by 10mm since January 2020 to a new record high this year. The past two and ahalf years alone account for 10% of the overall rise in sea level since satellite measurements started nearly 30 years ago.
“We have such high levels of carbon dioxide in the atmosphere now that the lower 1. 5o C of the Paris Agreement is barely within reach,” said WMO secretary-general Petteri Taalas. “A rare triple-dip cooling La Niña means 2022 is likely to only be fifth or sixth warmest,” the report said.
On the impact of rise in temperature, the WMO cited several examples. It includes record breaking rain in July and August that led to flooding in Pakistan . It also flagged how large parts of Europe sweltered in repeated episodes of extreme heat. The UK saw a new national record on July 19, when the temperature topped more than 40oC for the first time.


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