Discoveries and Achievements
Carl Sagan accomplished many things during his life. He discovered the Runaway Greenhouse Effect, suggested evidence of water on Mars, and worked with the effects of nuclear war and nuclear winter.
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Venus's Runaway Greenhouse Effect
Carl Sagan discovered the Runaway Greenhouse Effect when trying to find an explanation for Venus's climate. This discovery effected Earth greatly, as it helped other scientists understand the effects of greenhouse gasses in our atmosphere.
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" I think his work on understanding planetary atmospheres in terms of insight into what is happening to our own atmosphere is critical in many ways. I think Carl was one of the half dozen scientists who had the biggest influence in making us more aware of what we are doing to our climate and to our environment."
- Ann Druyan
Nuclear Winter
Carl Sagan also researched nuclear winter. Nuclear winter is caused by the chemicals in nuclear weapons. No one could survive the chemicals in the air, let alone the frigid cold. Carl helped discover these effects.
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"Carl took on the military-industrial complex. He campaigned around the world for an end to the production of weapons of mass destruction. To him it was a perversion of science."
- Ann Druyan
Awards
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Carl Sagan also received many awards over his life. Once he died, he was even honored with an award named after him, The Carl Sagan Medal for Excellence in Public Communication in Planetary Science.
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