IPCC AR6 Report super-squeezed (supported by AI) [English version]

This blog is another try to get the original IPCC AR6 report more readable for a bigger audience by using AI to condense the original content from 85 pages to 3 pages.

Summary:

The Synthesis Report of the IPCC Sixth Assessment Report (AR6) summarizes the state of knowledge of climate change, its impacts and risks, and mitigation and adaptation options based on peer-reviewed scientific, technical, and socio-economic literature since the publication of the IPCC’s Fifth Assessment Report in 2014. The report integrates the main findings of the AR6 Working Group reports and the three AR6 Special Reports and recognizes the interdependence of climate, ecosystems, biodiversity, and human societies. The report identifies opportunities for transformative action that are effective, feasible, just, and equitable using concepts of systems transitions and resilient development pathways. The report is divided into three sections: Current Status and Trends, Long-Term Climate and Development Futures, and Near-Term Responses in a Changing Climate. The report provides key findings based on scientific understanding and is drawn from the underlying reports and their Summary for Policymakers, Technical Summary, and underlying chapters.

1. Current Status and Trends (Page 19-20):
   • The report confirms that human activities are unequivocally causing global warming, with changes in the climate now widespread, rapid, and intensifying.
   • Some recent hot extremes would have been extremely unlikely without human influence on the climate system.
   • Climate change is contributing to changes in extreme weather and climate events.
   • The global surface temperature has increased faster since 1970 than in any other 50-year period over at least the last 2000 years.
   • Global mean sea level has risen faster since 1900 than over any preceding century in at least the last 3000 years.
   • Human influence is the main driver of ocean warming since 1970 and the upper ocean (0–700 m) has warmed at a rate more than twice that of 1871–1971.
   • Human-induced climate change is causing changes to the Earth’s climate system that are unprecedented in thousands to hundreds of thousands of years.
2. Long-Term Climate and Development Futures (Page 33, 55, 62):
   • Future warming will be driven by future emissions and will affect all major climate system components, with every region experiencing multiple and co-occurring changes.
   • Many climate-related risks are assessed to be higher than in previous assessments, and projected long-term impacts are up to multiple times higher than currently observed.
   • Sea level rise, as well as other irreversible changes, will continue for thousands of years, at rates depending on future emissions.
   • The uncertainty range on assessed future changes in global surface temperature is narrower than in the AR5.
   • Future warming depends on future greenhouse gas (GHG) emissions, with cumulative net CO2 dominating.
   • An inclusive, equitable approach to integrating adaptation, mitigation, and development can advance sustainable development in the long term.
   • Policies that shift development pathways towards sustainability can broaden the portfolio of available mitigation and adaptation responses.
   • Climate resilient development will not be possible in some regions and sub-regions if global warming exceeds 2 °C.
3. Near-Term Responses in a Changing Climate (Page 56, 62):
   • Deep, rapid, and sustained mitigation and accelerated implementation of adaptation reduces the risks of climate change for humans and ecosystems.
   • Global warming is more likely than not to reach 1.5 °C between 2021 and 2040 even under the very low GHG emission scenarios (SSP1-1.9), and likely or very likely to exceed 1.5 °C under higher emissions scenarios.
   • Many changes in the climate system, including extreme events, will become larger in the near term with increasing global warming.
   • Multiple climatic and non-climatic risks will interact, resulting in increased compounding and cascading impacts, becoming more difficult to manage.
   • Losses and damage will increase with increasing global warming, while strongly concentrated among the poorest, vulnerable populations.
   • The level of risk for humans and ecosystems will depend on near-term trends in vulnerability, exposure, level of socio-economic development, and adaptation.
   • Any further delay in concerted anticipatory global action on adaptation and mitigation will miss a brief and rapidly closing window of opportunity to secure a liveable and sustainable future for all.