Global cooling was a 1970s conjecture about global climate change.
Global cooling may also refer to:
- Impact winter – Hypothesized climate effects due to an asteroid or comet impact on Earth
- Nuclear winter – Hypothetical climatic effect of nuclear war
- Volcanic winter – Temperature anomaly event caused by a volcanic eruption
- a long-term decline in:
- Climate change mitigation, means to counteract global warming
- Earth's Energy Imbalance, a measurable change in the planet's radiative equilibrium which quantifies its cooling (or heating) rate
- Generally, cooling periods in Earth's climate history, see:
- in historical times:
- Late Antique Little Ice Age
- Little Ice Age, a period from the 16th to 19th centuries characterized by cooling and coincident with below average sunspots frequency
- within the current glaciation, see stadial
- on a geologic time scale, see ice age
- in historical times:
- Geophysical global cooling, a conjecture about the formation of natural features that was made obsolete by the theory of plate tectonics