Global cooling was a conjecture during the 1970s of imminent cooling of the Earth's surface and atmosphere culminating in a period of extensive glaciation.At the time, some papers in the scientific literature did explore this hypothesis, but a larger number of papers were published on the topic of global warming due to greenhouse gas emissions.

Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system, and its related effects. ...