The Manhattan Declaration itself declares that:
Others will, no doubt, take a more thorough look at the list entries. For the most part they seem the same old gang of cranks, old farts, and fakes that typically turn up on this kind of thing. However, while skimming it, I found a couple of interesting and, as far as I can tell, new names. For example:
Robert E. Murray, PE, B. Eng. (mining engineering, West Virginia University), AMP (Harvard University); Chairman, President and Chief Executive Officer, Murray Energy Corporation and Subsidiary Companies, Pepper Pike, Ohio, U.S.A.
Robert E. Murray is a mining mogul, Republican backer, and outspoken critic of AGW theory. Among his mines is the Crandall canyon mine, which collapsed last summer, trapping and killing six miners. While waiting for news of the six, he engaged in a long, meandering defence of his mining operation which included a tirade against the global warming "crusade" that threatened his business.
During an earlier career as a coal-mining executive for the North American Coal Corporation, Murray was allegedly visited by a "tiny, talking squirrel", which instructed him to go into business for himself. (To be fair, wiki notes that this story is "dubious")
Another name on the list is:
Robert Edward Murray, B Eng. (mining engineering, West Virginia University), MBA (Ohio State University), Vice President, Business Development and External Affairs, Murray Energy Corporation and Subsidiary Companies, Pepper Pike, Ohio, U.S.A.
This is either one of Robert E. Murray's three adult children, or he replaced his middle initial with his full name and signed the decalaration a second time, which would be cheating.
And then there's:
Ryan M. Murray, B Eng. (mining engineering, West Virginia University), MBA (Ohio State University); Vice President, Operations, Murray Energy Corporation and Subsidiary Companies, Alledonia, Ohio, U.S.A."
As far as I can tell, Ryan Murray is pretty clearly one of the adult children of Robert E.
Furthermore, in a supplementary list of "Citizen Endorsers" of the declaration ("non-qualified", one would presume), you find someone who is either Robert E.s wife (given as Brenda Lou Moore in wiki) or an adult daughter:
Brenda L. Murray, Consultant, Murray Energy Corporation and Subsidiary Companies, Pepper Pike, Ohio, U.S.A.
Nice to see that the whole family is involved, but this smacks of Sexism. What makes a lady mining consultant less qualified to have an opinion on the science of climate change than a couple of male Vice-Presidents of the same mining company?
Especially when one of the other "qualified signatories" on Harris' list is a water witch?