: Frightening future awaits us if we fail to act: IPCC warning on climate change #IndiaNEWS #National New Delhi: Describing it as a stark assessment of the frightening future that awaits us if we fail

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Frightening future awaits us if we fail to act: IPCC warning on climate change #IndiaNEWS #National
New Delhi: Describing it as a stark assessment of the frightening future that awaits us if we fail to act, scientists across the globe Monday said, many of the changes observed in the climate are unprecedented in thousands, if not hundreds of thousands of years.
Moreover, some of the changes already set in motion such as a continued sea level rise are irreversible over hundreds to thousands of years, the scientists said, adding, they are observing changes in the Earths climate in every region and across the whole climate system.
In simplest terms: The climate has always changed but warming like that of recent decades has not been seen for millennia or longer. It is warming almost everywhere on the globe Australia, Asia, Europe, or North America; it is warming rapidly Iceland lost 750 sq kms of glaciers in the last two decades; the warming reversed a long-term cooling, and it has been a long time since it has been this warm.
It is unequivocal that human influence has warmed the atmosphere, ocean, and land. Widespread and rapid changes in the atmosphere, ocean, cryosphere, and biosphere have occurred. However, strong, sustained reductions in emissions of carbon dioxide (CO2) and other greenhouse gases would limit climate change; while benefits for air quality would come quickly, it could take 20-30 years to see global temperatures stabilise, they said.
This clangorous proclamation was made in the latest Intergovernmental Panel on Climate Change (IPCC) Report released at a virtual global media conference held at Geneva.
The report from the Working Group I Climate Change 2021: the Physical Science Basis is the first instalment of the IPCCs Sixth Assessment Report (AR6), which will be completed in 2022. This report was approved on Friday by 195-member governments of the IPCC, through a virtual approval session that was held over two weeks starting on July 26. For the first time, it has provided detailed regional assessment too.
The report provides new estimates of the chances of crossing the global warming level of 1. 5 degree C in the next decades, and finds that unless there are immediate, rapid, and large-scale reductions in greenhouse gas emissions, limiting warming to close to 1. 5 degree C or even 2 degree C will be beyond reach.
The report shows that emissions of greenhouse gases from human activities are responsible for approximately 1. 1 degree C of warming since 1850-1900, and finds that averaged over the next 20 years, global temperature is expected to reach or exceed 1. 5 degree C of warming. This assessment is based on improved observational datasets to assess historical warming, as well progress in Scientific Understanding of the response of the climate system to human-caused greenhouse gas emissions, an IPCC statement said.

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