A recent Newsweek magazine cover story on global warming contained significant errors and used outdated scientific material in its representation of global climate data collected by satellites, according to the scientists who maintain that dataset at The University of Alabama in Huntsville.
Dr. John Christy and Dr. Roy Spencer, who created and maintain the global temperature dataset, recently addressed how instruments aboard NOAA satellites collect temperature data and about the accuracy of that data. The most recent monthly update of global temperatures shows a warming trend of about 0.25° Fahrenheit per decade (about 0.14 C) since satellites started collecting the data in late 1978.
"One of the more egregious errors in the Newsweek article is the misrepresentation of the satellite data relative to a January 2000 report from the National Academy of Sciences," said Christy, who is director of UA-Huntsville's Earth System Science Center and who participated in writing the 2000 NAS report. "That report did not 'skewer' the satellite data, as the Newsweek article contends. Instead, it found that the apparent disagreement between surface temperature records and the satellite record was not so significant as to invalidate either dataset.
"There were also at least two major Newsweek errors relating to research that helped us correct an error caused by degrading orbits. First, that research (which was done by scientists and not by ‘engineers’) did not prove the satellite data are wrong while the surface data are accurate. It did help us correct a problem we had noticed but whose cause we had not identified. That is how the scientific process works. The resulting corrections, rather than being major, were rather minimal and were within our previously published margin of error.
"The other Newsweek error, which has unfortunately been widely repeated, is that the satellite data were showing no warming at the time that research was published," Christy said. "That is not correct. By 2000 the satellite temperature dataset was clearly showing a long-term global warming trend, albeit a trend that was slightly less than the warming seen in surface data. That is still true today."
"There has been significant research since 2000, continuing to both refine and confirm the accuracy of our satellite dataset," said Spencer, a principal research scientist in the Earth System Science Center. "This research has been published in peer-reviewed scientific journals and is part of the public record. It is troubling that a major news organization devoting significant resources to a story about an important environmental issue would choose to cite data from seven years ago rather than current data, and would still get it wrong."
Source: University of Alabama Huntsville
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Some Celiac Disease May Be Due To Viruses
- Pubic Hair Grooming Common Among Some US Women
- How A Former Naturopath Can Help Unravel The Trickery of Alternative Medicine
- Out Of Africa: What They Do Not Tell Us
- Brain Cancer: Why Glioblastoma Is So Difficult To Treat
- Little To No Association Between Butter Consumption And Chronic Disease Or Total Mortality
- Thinking 'I Can Do Better' Really Can Improve Performance, Study Finds
- "Thank you for your support - but since the comment you refer to was advocating the shutting down..."
- "Instead of ND, substitute DD, and you have a whole other basket of charlatans - and that comment..."
- " Some parts from my second response to Nina Teicholz article ( http://www.bmj.com/content/351/bmj..."
- "Science researchers did the CARET study, to see if vitamin A could chemo-prevent lung cancer (it..."
- "Whether or not a conclusion can be used for bad purposes should never be the reason to shut down..."
- Study finds that plant growth responses to high carbon dioxide depend on symbiotic fungi
- Telomere length is indicator of blood count recovery in treatment of Acute Myeloid Leukemia
- Natural metabolite can suppress inflammation
- New technology helps ID aggressive early breast cancer
- US needs greater preparation for next severe public health threats, panel finds