Climate Change. Causes.

Climate Change is a change in the statistical distribution of weather over periods of time, that range from decades to millions of years. Climate change may be limited to a specific region or across the whole earth.

Climate Change Causes:
*Plate Tectonics

Over the course of million of years, the motion of tectonics plates reconfigures global land and ocean areas.
*Solar Output

The sus is the predomint source for energy to the earth. Both long and short term variation of solar intensity are known to affect global climate.

*Orbital Variations

Slight variations in earth's orbit lead to changes in the amount of sunlight reaching the earth surface and how it's distributed across the globe. This is similar to solar variations in that is a change to the power input from the sun to the earth system. The three types of orbital variations combine together produce Milankovitch cycles, which have a large impact on climate and are notable for their correlation to glacial and interglacial periods their correlation with the advance and retreat of the sahara and for the appearance in the statigraphic record.
*Volcanism

Is a process of conveying material from the crust and mantle of the earth to it's surface. Vulcanic eruptions, Geysers, and Hot springs are examples of volcanic processes which releases gases and/or particulates into the atmosphere.
*Ocean Variability

The ocean is a fundamental part of climate system. Short-term fluctuations (years to a few decades) such as the El Nino Southern oscillation,The Pacific decadal oscillation and the North Atlantic oscillation, represent climate variability. On longer time scales, alterations to ocean processes such as thermohaline circulation play a key role in redistributing heat by carrying out a very slow and extremely deep movement of water and the long-term redistribution of heat in the world's oceans.
*Human Influence

Anthropogenic factors are human activities that change the environment. Various hypotheses for human-induced climate change have been argued for many years. Presently the scientific consensus on climate change s that human activity is very likely the cause for the rapid increase in global average temperatures over the past several decades.Of most concern in these anthropogenic factors is the increase in CO2 levels due to emissions from fossil fuel due to combustion, followed by aerosols and cement manufacture Other factors, including land use, ozone depletion, animal agriculture and deforestation are also of concern in the roles they play (both separately and in conjunction with other factors) in affecting climate. An US GEOLOGICAL SURVEY, estimates are that human activities generate more than 130 times the amount of carbon dioxide emitted by volcanoes.
Here I wxposed the causes of climate change, what Do you think? What Did I leave out?

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