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The IPIE analyzed 4,798 peer-reviewed publications, including a systematic review of 588 articles and a meta-analysis of 43 experiments, to evaluate strategies for improving the global information environment. The findings establish a scientific consensus that content labeling and corrective information are effective in reducing the impact of misinformation on user perceptions. While other interventions such as content moderation and media literacy are plausible, there is less consensus on their effectiveness due to inconsistent study designs and a lack of measurable impact data. The report highlights significant research gaps, noting that most studies are published in English and focus on Western countries, and calls for more standardized definitions, better access to platform data, and more diverse, multilingual research to better understand the global information landscape.

The document identifies content labeling and corrective information as the only two countermeasures with emerging scientific consensus and empirical validation for reducing the effects of misinformation on user perception. While other strategies like content moderation and media literacy are considered plausible, the report highlights a critical lack of robust, multi-lingual, and non-Western research, noting that less than one-fifth of studied countermeasures reported a measurable impact.

The International Panel on the Information Environment (IPIE) analyzed 4,798 peer-reviewed publications to identify effective countermeasures against digital misinformation. The synthesis, comprising a systematic review of 588 articles and a meta-analysis of 43 experiments from 18 publications, found emerging scientific consensus that content labeling and corrective information are effective in reducing the impact of misinformation on user beliefs. Other strategies, such as content moderation, media literacy, and reporting mechanisms, are considered acceptable but lack consistent evidence of effectiveness. The report highlights a critical need for more research involving non-English languages, diverse global geographies beyond Western countries, and access to real-world industry data to strengthen the global information environment.

The IPIE argues that the current guidance for the Political Advertising Regulation contains regulatory gaps and technical omissions. It recommends clarifying the obligations of content creators and intermediaries, acknowledging the limitations of automated detection systems, and establishing evidence-based standards for the design and placement of political advertisement labels and transparency notices to ensure effective enforcement and public disclosure.

The IPIE seeks academic researchers globally to provide scientific assessments of the global information environment. Affiliates may serve as reviewers, panel members, or advisors on science diplomacy and research trajectories. The affiliation lasts for two years, requires an integrity statement and conflict of interest declaration, and may offer stipends for high-level contributions to Scientific Panels.