climate change

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climate change:

see global warmingglobal warming,
the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution. Global warming and its effects, such as more intense summer and winter storms, are also referred to as climate
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Climate change

Attributed directly or indirectly to human activity that alters the composition of the global atmosphere and is in addition to natural climate variability over comparable time periods; often used to describe global warming with environmental implications including temperature and sea-level rises; changes in rainfall and the intensity and frequency of extreme weather events; groundwater, atmospheric, and ocean circulation patterns and locations; and displacement of ecosystems and commercial resources.

climate change

[′klī·mət ‚chānj]
(meteorology)
Any change in global temperatures and precipitation over time due to natural variability or to human activity.
References in periodicals archive ?
The difficulty has always been in identifying the emerging signal of global warming against the noisy background of natural climate variability.
The authors offer a balanced interpretation on whether climate change has begun and conclude that the evidence regarding the link between observed temperature trends and the enhanced greenhouse effect is not absolutely proven because any trend is very difficult to discern from the background natural climate variability.
The aggregate temperature rise by the end of the next century will not exceed 1 [degree] C from the 1990 level, which corresponds approximately to the natural climate variability range on a century scale.
Previously, few scientists apart from Hansen had been willing to go even that far, contending that the relatively small warming so far could easily be a result of natural climate variability.
This study examines the roles of both human-induced climate change and natural climate variability in this event.
A change of climate is directly or indirectly related to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability over comparable time periods.
This warming is due to natural climate variability and human induced climate change, and climate models project that it will keep getting warmer.
Today, the YWAS is perceived also as a "worst-case realisation" of natural climate variability (figure 3).
Similarly, the 2009-2010 winter cold spell was consistent with the natural climate variability displayed in the climate records.
Natural climate variability and global warming; a Holocene perspective.
This campaign demonstrates we can take long-term measures that adapt to our region's natural climate variability.