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Victor Venema

Scientist, University of Bonn, Germany

Expertise: Climatology, Station data quality

Video promoted by John Stossel for Earth Day relies on incorrect and misleading claims about climate change

“This video is misleading in so many ways it’s hard to know where to begin. For a start there’s a repeated assertion that climate “alarmists” won’t enter debate on climate change, but there are many examples of renowned climate scientists such as Gavin Schmidt, Michael Mann and David Karoly entering into debates with climate change denialists. Many scientists have found such debates to be unhelpful as they give the false impression of balance despite there being broad consensus among climate scientists…”

New York Times op-ed claiming scientists underestimated climate change lacks supporting evidence

“Most of the specific facts and statistics in this op-ed are correct, but the overall effect is significantly misleading. The author’s central point is that scientists have been drastically underestimating the scope and the pace of climate change until just the past decade or so, and recent events such as permafrost melting, ice cap loss, and extreme weather events have caught them by surprise. This is simply not true.”

Telegraph article on climate change mixes accurate and unsupported, inaccurate claims, misleads with false balance

“This article is a prime example of false equivalence, putting fringe figures side by side with mainstream scientific findings while failing to distinguish between their respective credibility. It is rife with numerous factual errors and misrepresentations. Anyone unfortunate enough to read it will understand less of the science – as actually appears in peer-reviewed publications and conferences – not more.”

Letter signed by "500 scientists" relies on inaccurate claims about climate science

“The scientific content is completely inaccurate, undocumented, and fails to bring proof for its claims. The ending of the Little Ice Age in 1850 has no logical link with the fact that the Earth is warming now. Most past climate variations have been slower or less intense as the present one, and if they were as fast or severe they brought about mass extinctions in the biosphere. No explanation or proof is brought on the implausibility or inaccuracy of climate models (whose accuracy or uncertainty is precisely quantified and makes their use better than just random guesses).”

Washington Examiner op-ed cherry-picks data and misleads readers about climate models

“This article focuses only on specific lines of evidence that climate models disagree with observations. In doing so, the authors ignore research that helps to reconcile differences between models and observations. The authors do not consider alternate datasets and time periods in which models and observations agree. Models are one tool for understanding climate change; their overall credibility does not hinge on one variable, in one domain, over a specific time period, with respect to a set of imperfect observations.”

Popular article in The Independent accurately summarizes June heat in Europe

“The article accurately and clearly states the facts regarding the recent extreme heat in June 2019 and its link to anthropogenic warming. This includes acknowledging that, at this point, this June record and its connection to climate change is based on only a single temperature product and one attribution study, and that further analysis may slightly change the initial conclusions drawn by researchers.”

Western Journal op-ed deceives readers with completely unsupported claims

“What would make their case stronger would be if they actually analysed all the data, engaged with the existing scientific literature and made their own contribution to our scientific understanding by publishing a scientific paper. The cherry picking exercise in this Western Journal article does not contribute to our scientific understanding of the world.”

Daily Caller uncritically reports poorly supported conclusion of satellite temperature study

“The absence of accelerating warming trends is meant to go against prevailing climate science, but I find that to be a strawman argument. In that sense the article is misleading—however, to its credit, it does report on other published results that contradict this recent study, but it fails to provide further context or to make any effort to compare/reconcile the validity of these different studies.”

2017 is on track to be among the hottest year recorded, scientists are not as surprised as ThinkProgress article suggests

The scientists who have reviewed the article confirm it accurately reports that 2017 is on track to being one of the warmest years on record. Reviewers note this wasn’t as unexpected as the article states, but the fact that 2017 global surface temperature are that high is a clear reminder that global warming has not stopped or slowed down.

Scientists explain what New York Magazine article on “The Uninhabitable Earth” gets wrong

“While it is clear that ongoing warming of the global climate would eventually have very severe consequences, the concept of the Earth becoming uninhabitable within anywhere near the timescales suggested in the article is pure hyperbole. The author has clearly done very extensive research and addresses a number of climate threats that are indeed major issues, but generally the narrative ramps up the threat to go beyond the level that is supported by science.”

Breitbart article falsely claims that measured global warming has been “fabricated”

“In a cursory attempt at both reporting and climate science, the author glibly highlights a document heavy on accusation and light on reasoned engagement with fact. Implying nefarious motives behind temperature measurement bias correction without providing readers any indication of why this is necessary is misleading and a dereliction of the author’s journalistic responsibility.”

Analysis of "The Phony War Against CO2"

“The article speaks about scientific questions under an “opinion” banner—as if questions about the role of CO2 in the Earth system could be a matter of opinions. For the major final conclusion “With more CO2 in the atmosphere, the challenge [to feed additional 2.5 billion people] can and will be met.”, there is absolutely no scientific credibility, nor support in the scientific literature—it is pure fantasy.”

Analysis of "Climate Exaggeration is Backfiring"

“This picking of quotes that are convenient for Robert Bradley Jr.’s narrative while ignoring what most climate scientists say is one of the most used rhetorical tools of this piece. The other is the use of offensive emotional language to reduce the critical thinking of his readers. People should know that Forbes is nowadays just a blogging platform.”

Analysis of "Environmental records shattered as climate change 'plays out before us'"

The article summarizes the main findings of the “2015 state of the climate” report published by the National Oceanic and Atmospheric Administration. Overall it accurately reports the main findings that many global indicators of the Earth’s climate, notably the global surface temperature, have set new records in 2015 under the joint influence of ongoing human-induced climate change and a strong El Niño event.

Analysis of "What science can tell us about the links between global warming and massive heat waves"

“This is a well-written article that provides a good overall discussion around the connection between climate change and the ongoing US heat wave. In the absence of a specific event attribution study the role of climate change in this event can’t be quantified, but Chris Mooney provides an insightful overview of the role of climate change in heat events generally.”

Analysis of "The Climate Snow Job"

“This article is indeed a snow job, as the title implies. The author has twisted the facts and distorted the science wildly. The author is well known for his wildly inaccurate climate “forecasts”.”

Analysis of "2015 Was Not Even Close To Hottest Year On Record"

“This article makes startlingly inaccurate claims about the earth’s surface and satellite temperature records, as well as attempts to ascertain the earth’s temperatures over the past two millennia through proxy measurements. The author would do well to talk to scientists involved in surface and satellite records and to consult the peer-reviewered scientific literature rather than blogs when writing in the future.”