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

The diagram below illustrates the way in which

greenhouse

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gases

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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

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

hence

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, not all heat from the Sun reaches the surface.

Secondly

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

However

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, a fraction of

this

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energy becomes trapped in our planet by the

greenhouse

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gases

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

For instance

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

This

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leads to fewer

greenhouse

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gases

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being absorbed by the trees.

Furthermore

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

greenhouse

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gases

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