Fact Briefs Summary Page
Skeptical 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? |
sks.to/gfb-1970s | sks.to/1970s | On Gigafact |
Did global warming stop in 1998? |
sks.to/gfb-1998 | sks.to/1998 | On Gigafact |
Is Antarctica gaining land ice? |
sks.to/gfb-antarctica | sks.to/antarctica | On Gigafact |
Does breathing contribute to CO2 buildup in the atmosphere? |
sks.to/gfb-breath | sks.to/breath | On Gigafact |
Have climate models overestimated global warming? |
sks.to/gfb-model | sks.to/model | On Gigafact |
Is the ocean acidifiying? |
sks.to/gfb-acid-1 | sks.to/acid | On Gigafact |
Is ocean acidification from human activities enough to impact marine ecosystems? |
sks.to/gfb-acid-2 | sks.to/acid | On Gigafact |
Was the Medieval Warm Period a global event? |
sks.to/gfb-mwp | sks.to/mwp | On Gigafact |
Does temperature have to rise before CO2 does? |
sks.to/gfb-lag | sks.to/lag | On Gigafact |
Were scientists caught falsifying data in the hacked emails incident dubbed 'climategate'? |
sks.to/gfb-climategate | sks.to/climategate | On Gigafact |
Are polar bears endangered? |
sks.to/gfb-bear | sks.to/bear | On Gigafact |
Are carbon dioxide emissions from human activities enough to affect the climate? |
sks.to/gfb-co2 | sks.to/co2 | On Gigafact |
Does CO2 correlate with global temperature long-term? |
sks.to/gfb-correlate | sks.to/correlate | On Gigafact |
Is decreased cosmic ray activity driving global warming? |
sks.to/gfb-cosmic | sks.to/cosmic | On Gigafact |
Is recent global warming part of a natural cycle? |
sks.to/gfb-cycle | sks.to/cycle | On Gigafact |
Does manmade CO2 have any detectable fingerprint? |
sks.to/gfb-co2increase | sks.to/co2increase | 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.