Original sentence: Global cooling was  a hypothesis during the 1970s of imminent cooling of Earth's surface and atmosphere culminating in a period of extensive glaciation.It was based on the best scientific evidence at the time
Edited sentence: , a larger and faster-growing body of literature projecting future warming due to greenhouse gas emissions.Global cooling was   a conjecture during the 1970s of imminent cooling of Earth's surface and atmosphere culminating in a period of extensive glaciation.This hypothesis had little support in the scientific community, but gained temporary popular attention due to a combination of a slight downward trend of temperatures from the 1940s to the early 1970s and press reports that did not accurately reflect the full scope of the scientific climate literature, i