IPCC’s Sixth Assessment Report Sounding Code Red For Humanity
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According to the latest IPCC (Intergovernmental panel on Climate Change, of the UN)’s Sixth Assessment report released on Monday, August 9, 2021, it is Code Red for humanity. Many of the changes observed by scientists in the Earth’s climate in every region and across the whole climate system, are unprecedented in thousands if not hundreds of thousands of years. Some of the changes, such as continued rising sea level already set in motion, are irreversible over hundreds to thousands of years. There will be faster warming and every region will be facing increasing changes.
At a briefing after the release of the UN’s IPCC Climate Report, scientists explained through charts and numbers their findings, in the video published on Aug 9, 2021, “By The Numbers: UN Officials Explain Expansive IPCC Report On Climate Crisis, Highlight Effects“, below:
According to the Guardian: Smoke from raging forest fires in Siberia has reached the north pole for the first time in recorded history, as a Russian monitoring institute warned the blazes were worsening, in the video published on Aug 10, 2021, “Climate change:Smoke from Siberia wildfires reaches north pole in historic first.“, below:
Måns Nilsson, executive director of the Stockholm Environment Institute, shares his thoughts on the latest report from the Intergovernmental Panel on Climate Change, in the video published on August 10, 2021, “IPCC report a ‘big warning signal’ to world leaders, climate expert says“, below:
SEI: lower fossil fuel production by 6% each year to stay under 1.5 degree C.
Ryan Grim, Alyssa Farah and Kim Iversen react to the UN’s new report on climate, in the video published on Aug 9, 2021, “SOUNDING The Alarm On Climate Change: IPCC Report Blames HUMAN ACTIVITY“, below:
Carbon pollution has risen to such extremes that a key threshold in the fight to stop climate change — limiting global warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) by the end of the century — will be crossed within the next 15 years. That is one of the key findings from a landmark report approved by delegates from 195 countries and published Monday by the Intergovernmental Panel on Climate Change (IPCC). The analysis, which comes amid record-breaking heat and rains that have rocked rich and poor countries alike, draws on more than 14,000 peer-reviewed studies to assess the physical science of climate change. It paints a sober picture of a planet warped beyond recognition by members of a single species in the space of just a few hundred years. “This report is a reality check,” said Valérie Masson-Delmotte, co-chair of the IPCC working group that prepared it, in the video published on Aug 9, 2021, “New IPCC report: More heat, more extreme weather events | DW News“, below:
Heating from humans has caused irreparable damage to the Earth that may get worse in coming decades, a UN climate report has concluded, in the video published on Aug 9, 2021, “Climate change IPCC report is ‘code red for humanity’, UN scientists say – BBC News“, below:
In the video published on Aug 9, 2021, “Climate change: UN to reveal landmark IPCC report findings@BBC News live“, below:
In the video published on Aug 10, 2021, “IPCC Report 2021: What have scientists predicted for the future?” below:
In the IPCC Working Group I report, Climate Change 2021: the Physical Science Basis, approved on Friday, August 6, 2021, by 195 member governments of the IPCC, through a virtual approval session that was held over two weeks that started on July 26, 2021, strong and sustained reduction in CO2 emissions and other greenhouse gases would limit climate change. Even though benefits for air quality would come quickly, it may take 20-30 year to for global temperatures to become stabilized. The Working Group I report is the first installment of the IPCC’s Sixth Assessment Report (AR6), to be completed in 2022.
Chair of the IPCC Hoesung Lee said, “This report reflects extraordinary efforts under exceptional circumstances. The innovations in this report, and advances in climate science that it reflects, provide an invaluable input into climate negotiations and decision making.”
The report estimated the chances of reaching above the global warming level of 1.5 degree C in the next few decades. Unless there are immediately 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 showed that about 1.1 degree C of warming between 1850-1900 was due to greenhouse gas emission from human activities and that the average of global warming over next 20 years is expected to reach or exceed 1.5 degree C of warming. This conclusion was based on improved observational datasets to assess historical warming and better understanding of the response of climate system to human-caused greenhouse gas emissions. IPCC Working Group I Co-Chair Valerie Masson-Delmotte said, “This report is a reality check. We now have a much clearer picture of the past, present, and future climate, which is essential for understanding where we are headed, what can be done, and how we can prepare.”
The report projected that in the coming decades climate changes will increase in all regions. At 1.5 degree C of global warming, there would be increased heat waves, longer warm seasons and shorter cold seasons. At 2 degree C of global warming, heat extremes would more often reach critical tolerance thresholds for agriculture and health.
Besides temperature change, climate change would also bring changes to wetness and dryness, to winds, snow and ice, coastal areas and oceans, by:
- Intensifying the water cycle, bringing more intense rainfall and associated flooding, as well as more intense drought in many regions.
- Affecting rainfall patterns, bringing increased precipitation in high altitudes and decreased precipitation over large parts of the subtropics, and changes to monsoon precipitation are expected to vary by region.
- Coastal areas will continue to see sea level rise throughout the 21st century, contributing to more frequent and severe coastal flooding in low-lying areas and coastal erosion. Extreme sea level events which previously occurred once in 100 years could happen every year by the end of this century.
- Further warming will amplify permafrost thawing, the loss of seasonal snow cover, melting of glaciers and ice sheets, and loss of summer Arctic sea ice.
- Changes to the ocean, including warming, more frequent marine heatwaves, ocean acidification, and reduced oxygen levels have been clearly linked to human activities. These changes affect both ocean ecosystem and the people that rely on them and will continue throughout at least the rest of this century.
- Some aspects of climate change may be amplified for cities, including heat (since urban areas are usually warmer than their surroundings), flooding from heavy precipitations events and sea level rise in coastal cities.
A more detailed regional assessment of climate change (including a focus on useful information that can inform risk assessment, adaptation, and other decision making, and a new framework that helps to translate physical changes in the climate: heat, cold, rain, drought, snow, wind, coastal flooding and more, into what they mean for society and ecosystems), is provided, for the first time, by the Sixth Assessment Report.
To prevent the worst from occurring, we all need to act now in every effort possible to reduce CO2 emission and global warming: let’s use renewable energy such as solar, wind, geothermal, drive/ride electric vehicles, eat less meat, eat more locally grown food, reduce waste, reuse, recycle, and live consciously and mindfully.
The newly developed Interactive Atlas interactive-atlas.ipcc.ch would allow regional information, fact sheets, technical summary, and underlying report can be explored.
Gathered, written, and posted by Windermere Sun-Susan Sun Nunamaker
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