Communications in the IPCC's Sixth Assessment Report cycle.

Area of Science:

• Climate Science Communication
• Environmental Policy Dissemination
• Intergovernmental Scientific Assessment

Background:

• The Intergovernmental Panel on Climate Change (IPCC) is adapting its communication strategies for the Sixth Assessment Report cycle.
• Lessons learned from the Fifth Assessment Report informed new approaches to communication.
• An Expert Meeting in Oslo (2016) focused on refining communication strategies.

Purpose of the Study:

• To describe the progress of the IPCC's renewed communications activities.
• To outline specific challenges and advancements in communicating climate change findings.
• To highlight the impact of enhanced communication on public and policymaker engagement.

Main Methods:

• Systematic development of key statements to convey report findings.
• Expansion of outreach activities to a wider range of stakeholders.
• Integration of communication specialists into Working Group Technical Support Units.

Main Results:

• The 2018 Special Report on Global Warming of 1.5°C achieved significant media coverage and public interest.
• Subsequent special reports in 2019 focused attention on the IPCC's work.
• The 2021 'Physical Science Basis' report garnered unprecedented media coverage.

Conclusions:

• The IPCC's enhanced communication efforts have demonstrably increased the influence and reach of its reports.
• Effective communication is crucial for the remainder of the current assessment cycle and beyond.
• The IPCC's strategic communication is vital for galvanizing public interest and informing policy on climate change.