Who researched: Michael H. Hart Where researched: Laboratory for Planetary Atmosphere, NASA/Goddard Space Flight Center Greenbelt, Maryland When researched: Received February 21, 1977 Revised June 20, 1977 Research methods used: -Calculated/researched changes in the solar luminosity, variations in the Earth’s albedo, the greenhouse effect, variation in the biomass, and a variety of geochemical processes -Assumed/approximated: … Continue reading Research Example 3: The Evolution of the Atmosphere of the Earth