Inaccurate
Global warming has not “ceased”, as Heartland Institute report falsely claims
Claim:
global warming ceased around the end of the twentieth century and was followed (since 1997) by 19 years of stable temperature
Latest in
Climate
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Source: Heartland Institute, Craig Idso, Fred Singer, Robert Carter, 2025-12-20 -
Flawed reasoningCO2 is a greenhouse gas that caused warming during past climate changes, notably as a feedback amplifying other factors
Claim:
Increases in atmospheric CO2 followed increases in temperature. Therefore, CO2 levels could not have forced temperatures to rise.
Source: Heartland Institute, Craig Idso, Fred Singer, Robert Carter, 2025-12-20 -
1.2HighNew York Times series accurately describes research on Antarctic ice sheets and sea level rise, but highlights uncertain studies
“Generally scientifically sound, but caution should be displayed before basing discussion solely on a single modeling study, especially when it incorporates fundamentally different processes relative to other contemporary models.”
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Incorrect
Heartland Institute report’s claim that climate models are too sensitive to CO2 does not reflect evidence
Claim:
[climate models] systematically over-estimate the sensitivity of climate to carbon dioxide ... and modelers exclude forcings and feedbacks that run counter to their mission
Source: Heartland Institute, Craig Idso, Fred Singer, Robert Carter, 2025-12-20 -
0.3NeutralThinkProgress story on thawing Alaskan tundra generally accurate but somewhat misleading
“The writing is a bit over the top, but factually correct in general. The main weakness is in linking the solidly evidence-based observed changes from the Commane et al paper with much more speculative links such as the Siberian methane bubbles.”
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Incorrect
Heartland Institute report incorrectly claims no evidence of human impacts in melting ice
Claim:
Melting of Arctic sea ice and polar icecaps is not occurring at ‘unnatural’ rates and does not constitute evidence of a human impact on the climate.
Source: Heartland Institute, Robert Carter, Craig Idso, Fred Singer, 2025-12-20 -
Daily Wire updates its article, but it still conveys false information
The author has removed two paragraphs and changed the title, but the new version of the article does not contain any mention of the fact that the article has been updated.
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-2Very lowThe Daily Wire makes wild claims about climate change based on no evidence
“The article contains little to no rational treatment of observational data, but relies on heavily biased secondhand interpretation… Even the title is based on a lie. There is no ‘study’ that finds static temperatures for 19-years. This article is based on a newspaper article that makes this false statement based in turn on a blog post…”
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-2Very lowThe Telegraph publishes false information about Arctic climate
“This article suffers from a common error in reasoning. The author focuses on individual “snapshots” of the state of the climate while ignoring the long-term trends. Those trends occur over many decades and must be observed/considered over those time scales.”
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InaccurateGlobal sea level rise is accelerating, despite Heartland Institute report’s claims otherwise
Claim:
Best available data show sea-level rise is not accelerating. Local and regional sea levels continue to exhibit typical natural variability—in some places rising and in others falling.
Source: Heartland Institute, Robert Carter, Craig Idso, Fred Singer, 2025-12-20
