Ross Gelbspan, an investigative journalist whose reporting on climate change exposed a campaign of disinformation by oil and gas lobbyists to sow doubt about global warming — a denialism that was embraced by Republican officials and, in some cases, by a credulous news media — died on Jan. 27 at his home in Boston. He was 84.
The cause was chronic obstructive pulmonary disease, his wife, Anne Gelbspan, said.