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  • How is Arctic warming linked to the ‘polar vortex’ and other extreme weather?

    Over the past decade, a growing body of research has proposed ways in which rapid Arctic warming can lead to harsh winters, summer heatwaves and even floods and droughts across the mid-latitudes. Some scientists say that climate change and Arctic sea ice loss are the root cause of these events, but others are more circumspect. In this detailed Q&A, scientists discuss the potential connections between Arctic warming and extreme weather across the mid-latitudes, what those theories look like, and how the evidence measures up.

  • How credible were 2018's most popular climate articles?

    Compared to last year’s top 10, there is a notable lack of low credibility stories. Two stories garnered mixed reviews from scientists. In one case, this was an article detailing false claims about sea level rise made by politicians, in which some reviewers felt the article simply wasn’t clear enough in its corrections. But there were no articles from partisan outlets presenting inaccurate rejections of climate system at the top in 2018. Instead, the list was dominated by major news outlets—with the exception of the top story, which was published by the local FOX station in St. Louis.

  • New York Times' coverage of IPCC report clearly presents conclusions

    This story in The New York Times covered the October release of the IPCC’s “Global Warming of 1.5 °C” report. Scientists who reviewed the story found that it provided an accurate and detailed summary of the report, though some statements about warming being “worse than previously thought” could have used some clarifying context.

  • Guardian story on climate impacts of diet gets mixed reviews from scientists

    “The word “Avoiding” in title and text is overly strong and should have been “Reducing”. Adopting a vegan diet is not necessary, but a reduction to having meat 1-2 times a week and dairy 3-4 times a week would suffice. In fact, flexitarian diets utilize natural resources much more efficiently than vegan diets[1]. In the article, Peter Alexander is quoted saying something to the same effect.”

  • Story on congressman's incorrect claims about sea level rise could have corrected them more explicitly

    “The comments from the members of the Committee suffer from severe inaccuracies and misconceptions, and citations of the invited climate scientist mostly address those issues.
    In general, the views that go against our understanding of the climate change process are underlined and presented as such by the author, but rarely supported by statements or explanations that go beyond the immediate replies from the invited climate scientist. Some of the inaccurate statements quoted in the text are thus left with an incomplete challenge.”

  • BBC article on IPCC report is mostly accurate, but could use some clarification

    “Scientifically, the article is overall correct, but it is in cases inaccurate in its description of certain aspects of the IPCC. For example, the IPCC does not conduct research, but assesses the available scientific evidence. The article also provides statements without context, despite this being essential for their interpretation.”

  • CNN accurately covers latest IPCC report

    This CNN story covered the October release of the IPCC’s “Global Warming of 1.5 °C” report. The report, which was requested by governments during the 2015 Paris Agreement negotiations, details the impacts of 1.5 °C compared to 2 °C and the emissions cuts required to limit warming to either of those levels. Scientists who reviewed the story found that it conveyed the information in the report without any errors, and included comments by scientists to summarize the report’s implications.

  • USA Today story updates readers on trend in monthly global temperatures

    “The piece accurately reports the surface temperature record warming of recent decades and joins the dots appropriately to the underlying cause of human emissions. It appropriately draws the distinction between regional/national records and the global mean behaviour. The included quotes are to authoritative sources.”

  • Washington Post article accurately discusses warm Arctic weather event

    “This article accurately describes the Arctic warming event and associated surprise by scientists, includes multiple explanations for possible causes, and does not overstate any connections to climate change, pointing out that more data is needed to know if these above-freezing events will be a new Arctic normal.”