A food policy analyst for 30 years, Dennis Avery began his career with the U.S. Department of Agriculture, served on the staff of President Lyndon Johnson's National Advisory Commission of Food and Fiber, and, prior to joining Hudson, was the senior agricultural analyst for the U.S. Department of State.
[1] He was the author of several books, including the New York Times best-seller Unstoppable Global Warming: Every 1,500 Years which he co-authored with S. Fred Singer of George Mason University in Virginia.
[citation needed] He did not believe that DDT causes egg shell thinning in eagles.
[6][7] Specifically, in a 1998 article for The Wall Street Journal, he claimed the Centers for Disease Control (CDC) had conducted studies showing that eating an organic diet carried an 8-times the risk of E. coli infection than eating a conventional diet.
[11] These views are contradicted by the scientific consensus on the effects of global warming, that humans have had an unprecedented impact on Earth's climate system and caused change on a global scale,[12] and expects climate change to have a significant and irreversible negative impact on climate and weather events around the world, posing severe risks like ocean acidification and sea level rise to human society and to other organisms.