Green eFact is rated Pro-Science with high factual reporting by Media Bias Fact Check.
PRO-SCIENCE
These sources consist of legitimate science or are evidence-based through credible scientific sourcing. Legitimate science follows the scientific method, is unbiased, and does not use emotional words. These sources also respect the consensus of experts in the given scientific field and strive to publish peer-reviewed science. Some sources in this category may have a slight political bias but adhere to scientific principles. See all Pro-Science sources.
- Overall, we rate Scientists’ Warning Left-Leaning Pro-Science and High factual due to its strong alignment with scientific consensus, transparent nonprofit structure, and evidence-based content, while acknowledging its clear advocacy for climate action and policy change.
Detailed Report
Bias Rating: PRO-SCIENCE (-2.9)
Factual Reporting: HIGH (0.5)
Country: Portugal
MBFC’s Country Freedom Rank: EXCELLENT
Media Type: Organization/Foundation
Traffic/Popularity: Minimal Traffic
MBFC Credibility Rating: HIGH CREDIBILITY
History
Green eFact is a Portugal-based digital fact-checking and environmental literacy platform focused on climate change, sustainability, and energy. According to its About page, the project aims to provide “validated and verified knowledge” while promoting environmental awareness and combating misinformation. The outlet produces fact-checks, explanatory content, and opinion pieces, often with strong visual and educational components designed for broad public engagement.
Read our profile on Portugal’s media and government.
Funded by / Ownership
Green eFact is owned by Encosta no Horizonte, Lda., a private company held by João Paulo Vieira and Ricardo Fonseca. The outlet states it operates independently with no political or corporate ties. It is registered with Portugal’s media regulator and is a verified signatory of the IFCN Code of Principles, indicating adherence to transparency, sourcing, and corrections standards. Revenue sources are disclosed through its financial transparency page, with no evidence of partisan funding.
Analysis / Bias
Green eFact is a specialized fact-checking outlet focused on environmental and climate topics. Its fact-checks, such as Is nuclear energy more dangerous than other energy sources?, rely on scientific datasets (e.g., Our World in Data) and institutional sources like the World Health Organization and United Nations Scientific Committee on the Effects of Atomic Radiation. Explanatory content, such as How can we reduce food waste? emphasizes data-driven environmental impacts and behavioral recommendations grounded in research.
Editorially, the outlet promotes climate awareness and policy action consistent with mainstream scientific consensus, aligning it with a left-leaning, pro-science perspective. However, reporting remains structured, evidence-based, and sourced. Even opinion content, such as European Parliament postpones sustainability reporting vote, presents multiple political perspectives and policy trade-offs. Overall, the outlet demonstrates strong sourcing practices, transparency in methodology, and adherence to fact-checking standards.
Failed Fact Checks
- None to date. Its IFCN certification further supports credibility and accountability.
Overall, we rate Green eFact Left-Leaning Pro-Science and High factual due to its rigorous fact-checking methodology, transparent ownership, IFCN certification, and reliance on scientific and institutional sources, while maintaining a clear advocacy focus on climate awareness and sustainability. (D. Van Zandt 04/09/2026)
Source: https://greenefact.sapo.pt/
Last Updated on April 9, 2026 by Media Bias Fact Check
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