What are the causes of climate change?
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Greenhouse gases 

Most climate scientists agree that the main cause of current global warming is the increase in greenhouse gases from human activities, which trap radioactive heat from the Earth into space. [1] It should be noted here that the Earth's temperature The United Nations has formed an international team on climate change to examine climate change, its impacts and write reports that summarize its results. [2]
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 Water vapor, carbon dioxide (CO 2 ) is one of the most important greenhouse gases, and it is very small in the atmosphere. Water vapor varies according to time and place, so it is difficult to measure its average concentration globally. Active around the atmosphere, with a concentration of about 0.04%, and other greenhouse gases: methane, nitrous oxide and chlorofluorocarbons. [3] 
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Sources of greenhouse gases 

Most greenhouse gases are emitted from burning fossil fuels in cars and factories, in electricity production, especially carbon dioxide, which is the most responsible for global warming , as well as methane emitted from landfills, agriculture, nitrous oxide emitted from fertilizers and gases used in refrigeration and industrial processes , And it is worth noting that deforestation works to keep carbon dioxide stored in the atmosphere. [2] 


Natural causes of climate change 
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The Earth's climate can be influenced by natural factors, such as changes in volcanic activity, solar radiation reaching it, and movement of the Earth around the Sun. These factors affect the amount of energy coming into the Earth. All these causes have led to climate change in different parts of the Earth. Decrease. [4] 

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References 

1- ↑ "A blanket around the Earth" , climate.nasa.govw , Retrieved 24-1-2018. Edited. 
2- ^ A b "Causes Of the Global Warming" , Www.nationalgeographic.com , Retrieved 24-1-2018. Edited. 
3- ↑ "Image of a stormCauses of climate change" , www.climatechange.environment.nsw.gov.au , Retrieved 24-12018. Edited. 
4- ↑ "Causes of climate change" , www.canada.ca , 27-11-2015, Retrieved 24-1-2018. Edited.


By: Mohammed Marwan