The greenhouse effect is when the earth's heat is getting trapped inside the atmosphere causing the earth's temperature to rise. The heat from the sun is absorbed by the earths surface, then the heat that is being reflected gets trapped by the gases. This is much like a greenhouse because the heat is being absorbed then trapped inside.
The main three greenhouse gases are Methane, Carbon dioxide, and water.
These are all considered greenhouse gases because they absorbs the suns light and heat up the atmosphere.
When the infrared lights hit the gases, they bounce back down causing them to stay in the atmosphere.
Greenhouse gases are gases that are being absorbed. When this happens, the heat gets trapped inside the atmosphere causing the temperature to rise.
This is showing the how much the earth's temperature is increasing over the years.
The earth's temperature has risen by approximately 1.53 degrees Fahrenheit since 1880.