McFarling was a 1992 Knight Science Journalism Fellow at Massachusetts Institute of Technology (MIT).[1] McFarling and fellow reporter Kenneth R. Weiss won several prizes for their five-part series "Altered Oceans" for the Los Angeles Times, including (with photojournalist Rick Loomis) the 2007 Pulitzer Prize for Explanatory Reporting for the same pieces. The citation read: "for their richly portrayed reports on the world's distressed oceans, telling the story in print and online, and stirring reaction among readers and officials."[1][5] For the same series, McFarling and Weiss received the 2006 George Polk Award for Environmental Reporting,[6] the 2007 Grantham Prize of the Grantham Foundation for the Protection of the Environment,[3] the 2007 American Geophysical Union Walter Sullivan Award for Excellence in Science Journalism[7] the 2007 Carl Sagan Award for Public Understanding of Science,[8] and the National Association of Science Writers Science in Society Award.[9]
McFarling won first place in the beat category for her reporting for STAT on health disparities and structural racism. She showed how systematic racism exists at every level, from medical school admissions to faculty hiring in orthopedics.
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In 2023, McFarling and Angus Chen were recognized for three stories on inequality in medicine for STAT with the national Edgar R. Murrow Award for excellence in diversity, equity and inclusion in the large digital news organization category.[11]