The following diagram shows how greenhouse gases trap energy from the Sun.

The diagram below illustrates the way in which

greenhouse

gases

trap energy emitted by the Sun. I will discuss three things that can occur for the heat energy released from the Sun and the impact made by humanity that favours one of the discussed outcomes.

Firstly

, there is a layer on Earth called the atmosphere, which deflects a portion of the light that comes from the outside,

hence

, not all heat from the Sun reaches the surface.

Secondly

, the heat may deflect from the ground and travel away towards space.

However

, a fraction of

this

energy becomes trapped in our planet by the

greenhouse

gases

present in the sky. Unfortunately, human activities lead to an increase in the presence of CO2 in the air.

For instance

, people have cut trees for a long time, but recently the pace at which it is done has skyrocketed.

This

leads to fewer

greenhouse

gases

being absorbed by the trees.

Furthermore

, cars and factories that our civilisation perform combustion with carbon dioxide (one of the

greenhouse

gases

) being produced and released. These factors combined result in the increase in concentration of the heat-trapping molecules.