Horner has written on numerous topics in publications such as law reviews, legal and industrial trade journals, and opinion pages. He is the author of four books:
The Liberal War on Transparency (2012)
Power Grab: How Obama's Green Policies Will Steal Your Freedom and Bankrupt America (2010)
Red Hot Lies: How Global Warming Alarmists Use Threats, Fraud, and Deception to Keep You Misinformed (2008)
The Politically Incorrect Guide to Global Warming (and Environmentalism) (2007)
Horner "has been instrumental in orchestrating the attacks on climate scientists over the past decade in the form of vexatious and frivolous FOIA demands, efforts to force scientists to turn over all of their personal email," said Michael Mann, a senior climate scientist.[9][3]
Coal industry support
In 2015, bankruptcy court documents for the coal company Alpha Natural Resources revealed Horner was privately funded by grants sent to his home address.[10][2][3] In early June 2015, the Coal & Investment Leadership Forum, a trade show, sent a message to its email list confirming coal industry support of Horner: "As the 'war on coal' continues, I trust that the commitment we have made to support Chris Horner's work will eventually create great awareness of the illegal tactics being employed to pass laws that are intended to destroy our industry." The email was signed by Alliance Resource Partners Joe Craft III, Alpha Natural Resources Kevin Crutchfield, Drummond Company's Gary Drummond, Arch Coal's John Eaves and United Coal Co.'s Jim McGlothlin.[2][11]