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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Fact Briefs Summary Page

FactBriefSkeptical Science is partnering with Gigafact to produce fact briefs — bite-sized fact checks of trending claims. This fact brief was written by Sue Bin Park in collaboration with members from our Skeptical Science team. You can submit claims you think need checking via the tipline.

List of fact briefs published on Skeptical Science and Gigafact

The table below will be updated regularly to show the already published fact briefs.

Fact brief question

Fact Brief Rebuttal Gigafact

Was an Ice Age predicted in the 1970s? On Gigafact

Did global warming stop in 1998? On Gigafact

Is Antarctica gaining land ice? On Gigafact

Does breathing contribute to CO2 buildup in the atmosphere? On Gigafact

Have climate models overestimated global warming? On Gigafact

Is the ocean acidifiying? On Gigafact

Is ocean acidification from human activities enough to impact marine ecosystems? On Gigafact

Was the Medieval Warm Period a global event? On Gigafact

Does temperature have to rise before CO2 does? On Gigafact

Were scientists caught falsifying data in the hacked emails incident dubbed 'climategate'? On Gigafact

About fact briefs published on Gigafact

Fact briefs are short, credibly sourced summaries that offer “yes/no” answers in response to claims found online. They rely on publicly available, often primary source data and documents. Fact briefs are created by contributors to Gigafact — a nonprofit project looking to expand participation in fact-checking and protect the democratic process. See all of our published fact briefs here.

Gigafact Tipline

The Consensus Project Website


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