How did Roger Revelle die?

Roger Revelle, the prominent American oceanographer and climate scientist, passed away on July 12, 1991, from complications related to cardiovascular disease. He had been suffering from health issues for several years prior to his death. Revelle is best known for his early work on climate change and for helping to raise awareness about the impact of carbon dioxide emissions on global warming. His contributions to science continue to influence environmental policy and research today.