20. March 2023
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IPCC Releases New Synthesis Report

In the last instalment of its sixth reporting cycle, the IPCC calls for accelerating climate protection
IPCC-Vorsitzender Hoesung Lee (Photo: IISD/ENB | Anastasia Ro)

Following lengthy negotiations, today the IPCC presented the new Synthesis Report for its sixth reporting cycle in Interlaken, Switzerland. The document summarises the findings of its three Working Groups and three Special Reports. Intended for political decision-makers and the general public alike, it offers a valuable basis of discussion for future climate negotiations.

At the 58th meeting of the Intergovernmental Panel on Climate Change (IPCC), down to the wire, every last word was up for debate: nevertheless, after a week of negotiations – two days longer than planned, and with talks continuing around the clock – there was thunderous applause in Interlaken, Switzerland when the delegates tentatively approved the last few lines of the new Synthesis Report. The delegates then thanked IPCC Chair Hoesung Lee, the IPCC Secretariat, and the authors with a standing ovation for their hard work and their vital contributions to the IPCC’s findings in the sixth reporting cycle.

The report was constantly reviewed until Sunday evening, when it was approved. Today, the Panel will present the outcomes at an international press conference. “The implementation of effective and just climate protection measures will not only reduce the loss of and harm to the natural environment and human beings, but also yield further benefits,” said IPCC Chair Hoesung Lee. “This Synthesis Report underscores the urgent need for more ambitious measures and shows that, if we act now, we can still ensure a liveable, sustainable future for all.”

In a press release on the report, the IPCC stresses that the speed and scope of the measures implemented and planned to date are insufficient to combat climate change. Greenhouse-gas emissions have risen further since the last report and led to global warming of 1.1 degrees Celsius in comparison to the preindustrial level, it claims. In order to limit warming to 1.5 degrees, emissions must be reduced in all sectors and virtually cut in half by 2030. Globally, there is sufficient capital to achieve this, but governments must – by allocating public funding, for example – send clear signals to the financial world, moving it to make massive investments in climate-friendly technologies and projects.

The Synthesis Report marks the end of the IPCC’s sixth reporting cycle and summarises the findings of its three Working Groups – The Physical Science Basis (WG I), Impacts, Adaptation and Vulnerability (WG II), and Mitigation of Climate Change (WG III) – and three Special Reports – “Global Warming of 1.5 °C” (SR1.5), “Climate Change and Land” (SRCCL), and “The Ocean and Cryosphere in a Changing Climate” (SROCC). Intended for political decision-makers and the general public alike, the Synthesis Report presents the summarised findings in a straightforward, accessible format. Accordingly, it is considered an essential basis for future climate negotiations and has been eagerly anticipated.

Three experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) participated in the sixth reporting cycle. Prof Hans-Otto Pörtner, an ecophysiologist at the AWI, has co-chaired Working Group II with Prof Debra Roberts (South Africa) since 2016. Dr Björn Rost and Prof Dieter Piepenburg served as Lead Authors for individual chapters in the sixth Assessment Report.

 

Further informationen:

IPCC Press release:
https://www.ipcc.ch/site/assets/uploads/2023/03/IPCC_AR6_SYR_PressRelease_en.pdf

IPCC Synthesis Report:
https://www.ipcc.ch/report/ar6/syr/

Helmholtz Climate Initiative’s Info-Site on the Synthesis Report (in German):
https://www.helmholtz-klima.de/aktuelles/synthesebericht-zum-sechsten-ipcc-sachstandsbericht

Homepage of the German IPCC Coordination Office:
https://www.de-ipcc.de/index.php

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