IPCC Rolling Out 6th Global Assessment

The Intergovernmental Panel on Climate Change (IPCC) has published a report Climate Change 2021: The Physical Science Basis. The report is part of the IPCC’s 6th global assessment of Earth’s climate.

The IPCC is the United Nations body for assessing the science related to climate change. The IPCC provides scientific assessments on climate change. IPCC assessments address relevant impacts and potential future risks. The IPCC was created in 1988, and now has 195 Member countries.

Through its assessments, the IPCC determines the state of knowledge on climate change. It identifies where there is agreement in the scientific community on topics related to climate change, and where further research is needed. The IPCC seeks to present adaptation and mitigation options.

The report addresses the most up-to-date physical understanding of the climate system and climate change, bringing together the latest advances in climate science, and combining multiple lines of evidence from paleoclimate, observations, process understanding, and global and regional climate simulations.

Key findings from the report:

The Earth is warming faster than previously thought.

Unless there are immediate, rapid and large-scale reductions in greenhouse gas emissions, limiting warming to close to 1.5°C or even 2°C will be beyond reach.

Climate change is impacting the whole world.

Climate change is already affecting every region on Earth, in multiple ways. Impacts are not uniform; some areas will be harder hit than others. The nature and degree of risk will vary across regions.

Climate Change 2021: The Physical Science Basis is the result of tremendous, worldwide collaboration. More than 200 authors from 66 countries as well as more than 500 additional contributors drafted the report, which includes over 14,000 cited references. This report is the first of several to be released by the IPCC as part of the current global assessment. The synthesis report is expected to be published in the spring of 2022.

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