The list cites nothing, and that's the shortest introduction so far. Horn has actually written to the EPW according to the list.
But here's some more info:
and he has a website:
On his FAQ page he has a topic "Is Global Warming For Real? Click here for the answer"
There's also a news article interviewing him here where he talks about global warming:
- Climate's changed before
- Global warming is good
- Water vapor is the most powerful greenhouse gas
- Carbon dioxide concentration is a very small number
- It's the sun
- Human CO2 is a tiny % of CO2 emissions
- "concerns over warming are silly since he believes the world could be in store for another little ice age."
- Natural Cycles (the God Did It of arguments)
- Global warming industry conspiracy
When I found the news article and started reading it I wondered why The List hadn't cited it, as it cites many news articles for other names. My guess is because at the end of the article Horn's arguments are firmly tackled by climate scientists Dr Bill Chameides and Dr Brenda Ekwurzel:
"Ekwurzel or Chameides both discounted Horn's claim that only three percent of carbon emmisions are man-made.
"The claims are common if you haven't been trained in climate science," said Ekwurzel. "He's looking at the composition of the atmosphere and drawing conclusions without understanding all the various properties of water vapor versus carbon dioxide and so on."
"A self-described political moderate, Horn said he first conceived of the global warming presentation to engage with the popular topic of climate change, and he started from the premise that global warming didn't exist."
"Horn said that he wasn't alone in his beliefs about global warming, citing Web sites such as icecap.us and climatescience.org"
"In addition, Horn says, only about three percent of carbon dioxide in the atmosphere is man-made. The amount of man-made carbon in the atmosphere, Horn says, composes less than a tenth of the total atmosphere. According to Horn, such a small percentage couldn't possibly have an effect on global climate."
- From the article we learn that Horn has a BSc in meteorology.