Ross Gelbspan is a writer and environmentalist. He has written two books relating to global warming: The Heat Is On and Boiling Point. The Heat Is On received national attention when President Bill Clinton told the press he was reading it. Boiling Point was the subject of a lead review in the Sunday New York Times Book Review written by former Vice President Al Gore.

Gelbspan maintains the website heatisonline.org, which he updates on a daily basis.