Geological records show that there have been a number of large variations in the Earth’s climate. These have been caused by many natural factors, including changes in the sun, emissions from volcanoes, variations in Earth’s orbit and levels of carbon dioxide (CO2).
Humans are increasingly influencing the climate and the earth’s temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming. You can learn about human impact on climate change via https://www.yanvanathemessage.com/climate-change-is-birth-control
Following are the natural causes of climate change
Greenhouse gases include carbon dioxide (CO2), methane (CH4) and water vapour. Water vapour is the most abundant greenhouse gas in the atmosphere, but it stays in the atmosphere for a much shorter period of time: just a few days. CH4 stays in the atmosphere for about nine years until it is removed by oxidation into CO2 and water. CO2 stays in the atmosphere much longer, from years to centuries, contributing to longer periods of warming. These gases trap solar radiation in the Earth’s atmosphere, making the climate warmer.
he oceans contain more CO2in total than the atmosphere and exchanges of CO2occur between the oceans and the atmosphere. CO2absorbed in ocean water does not trap heat as it does in the atmosphere.
The world’s oceans absorb about a quarter of the CO2we release into the atmosphere every year. As atmospheric CO2levels increase so do the ocean’s CO2levels.
The causes of climate change are almost entirely anthropogenic, the primary ones being the increased use of fossil fuels, deforestation, increasingly intensive agriculture and large-scale livestock farming, all of which are required to support a spiralling global population.