5 Explain how increases in greenhouse gases (carbon dioxide and methane) are thought to cause global warming.

 

The Sun sends energy to the earth in two discrete forms, heat and light.

• Some of the heat is reflected back to the sun/space, but some is trapped in the earth.
• This is caused by the existence of some gases and we call this the Greenhouse effect.
• The primary Greenhouse gases are Carbon Dioxide and Methane.

 

The greenhouse effect is a serious threat to our world. The reason for this can be described by the proliferation of greenhouse gases which causes the greenhouse effect. Increased combustion of carbon in industries which mass produce Carbon Dioxide as a side product and the cutting down of trees which release CO2 via respiration are two major reasons why the greenhouse effect is becoming more serious.

The increase of heat trapped in the earth causes an average rise in sea level and global average temperatures, and we call this effect Global warming