Roger R. Revelle was an American scientist who made significant contributions to our understanding of the Earth's oceans and climate.
Here are three of his greatest contributions or discoveries, along with a brief explanation of each:
Revelle co-authored a paper that showed that the concentration of carbon dioxide in the Earth's atmosphere was increasing due to human activity, and that this increase could lead to climate change.
Revelle led the creation of the International Indian Ocean Expedition, which was a multi-year, multi-national research effort to study the oceanography and biology of the Indian Ocean.
Revelle co-authored a report for the National Academy of Sciences that called for a comprehensive research program to study global climate change, which helped pave the way for increased funding and attention to the issue.
Overall, Revelle's contributions to oceanography and climate science have been highly influential, and have helped shape our understanding of the Earth's environment and the impacts of human activity on the planet. His work on climate change in particular was groundbreaking, and helped to bring the issue to the forefront of scientific and public discourse.