Editing Extreme weather (section)

=== Natural variability ===
{{Further|Climate variability and change}}

Aspects of our climate system have a certain level of natural variability, and extreme weather events can occur for several reasons beyond human impact, including changes in pressure or the movement of air. Areas along the coast or located in tropical regions are more likely to experience storms with heavy precipitation than temperate regions, although such events can occur. 

The atmosphere is a complex and dynamic system, influenced by several factors such as the natural tilt and orbit of the Earth, the absorption or reflection of solar radiation, the movement of air masses, and the [[water cycle]]. Due to this, weather patterns can experience some variation, and so extreme weather can be attributed, at least in part, to the natural [[Climate variability and change|climate variability]] that exists on Earth. 

Climatic phenomena such as the [[El Niño–Southern Oscillation|El Niño-Southern Oscillation]] (ENSO) or the [[North Atlantic oscillation]] (NAO) impact weather patterns in specific regions of the world, influencing temperature and precipitation.<ref name=":4">{{Cite journal|last=Trenberth|first=Kevin E.|date=November 2011|title=Attribution of climate variations and trends to human influences and natural variability: Attribution of the human influence|journal=Wiley Interdisciplinary Reviews: Climate Change|language=en|volume=2|issue=6|pages=925–930|doi=10.1002/wcc.142|s2cid=140147654|doi-access=free}}</ref> The record-breaking extreme weather events that have been catalogued throughout the past two hundred years most likely arise when climate patterns like ENSO or NAO work "in the same direction as human‐induced warming."<ref name=":4" />