This comes from the Heartland Bios.
Archibald is a scientist operating in the fields of cancer research, climate science, and oil exploration. In oil exploration, he is operator of a number of exploration permits in the Canning Basin, Western Australia.
His speech at the NY conference was titled "The Solar Cycle Length: Temperature Relationship in US Climate Records and the Implications of Solar Cycle 24."
This comes from the Australian Climate Science Coalition website
"David Archibald is a Perth, Australia-based scientist operating in the fields of cancer research, oil exploration and climate science. After graduating in science at Queensland University in 1979, Mr Archibald worked in oil exploration in Sydney and then joined the financial industry as a stock analyst. Mr Archibald has been CEO of multiple oil and mineral exploration companies operating in Australia. He has published a number of papers on the solar influence on climate, and is a director of the Lavoisier Society (Lavoisier Group), a group of Australians promoting rational science in public policy."
His own website gives no info on his background.