Causes Of Climate Change
There are various causes of climate change which can be brought about by a variety of factors. These include natural external factors, such as changes in solar emission or slow changes in the earth’s orbit; or natural internal processes of the climate or earth system such as volcanic activity; or, as has occurred recently, human-induced (anthropogenic) factors.
To separate out the difference between human-induced and natural factors, the United Nations Framework Convention on Climate Change (UNFCCC) uses the term ‘climate change’ to refer to changes that can be attributed to human activity that has changed the composition of the atmosphere that result in climate change. The UNFCCC uses the term ‘climate variability’ to refer to natural alterations in the earth’s climate.
In the past, the conversion of most of the temperate forest zones into agricultural land changed the ecology and the local climate. After the Industrial Revolution, industrialization, urbanization and population growth have caused the spread of enormous pollutants effecting the deliberate modification of the climate.
Combustion of a great amount of fossil fuels has caused an increase in the concentration of greenhouse gases resulting in global warming and climate change. This has altered the wind, cloud and precipitation pattern. The land use has also an effect on the climate such as deforestation, agricultural work and urbanization.