Climate variability on earth arises from solar variations, albedo changes, volcanic activity, changes in cloud cover, jet stream patterns, changes in the earth's orbit around the sun, ocean circulation, tectonic changes, and greenhouse gas levels. Over the earth's history in geologic time there have been periods of warming and cooling including ice ages.
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- Climate variability on earth arises from solar variations, albedo changes, volcanic activity, changes in cloud cover, jet stream patterns, changes in the earth's orbit around the sun, ocean circulation, tectonic changes, and greenhouse gas levels. Over the earth's history in geologic time there have been periods of warming and cooling including ice ages. There have also been short term variations that have influenced global and more regional climate factors over various periods: year to year, decade to decade, and over hundreds of years. The phrase climate variability is a more neutral and less politically charged phrase than climate change which includes the assumption that a particular change of the climate is taking place. Many natural sources of climate variability are known, at least qualitatively. There is scientific controversy about the existence and size of human influences on climate variability and in the study of global warming and global warming controversy. Scientists are also studying what factors and variables influence short and long term climate behavior. Climate includes temperature, rainfall, cloud behavior, winds, and storms. These in turn influence sea level, snow and ice pack (in colder areas), ocean chemistry and ecological changes in plant and animal populations and ecosystems. Climate variability manifests in trends, patterns, and complex regional interreactions. Standard deviation and statistical analysis are used to understand and better predict these changes and the variables that influence them.
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- Climate variability on earth arises from solar variations, albedo changes, volcanic activity, changes in cloud cover, jet stream patterns, changes in the earth's orbit around the sun, ocean circulation, tectonic changes, and greenhouse gas levels. Over the earth's history in geologic time there have been periods of warming and cooling including ice ages.
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