4.My final sketch (two rockets launching out of the earth and the heat is increasing!but the colour have not paint yet.....)

3.My third sketch ( the tree is still launching out of the earth n the earth is become very hot.)

2.My second sketch ( trees are launching out of the earth!)

1.My first sketch (got explosion tree,tree rockets,ice cream tree that melting because of heat.)

Global warming means that the increase in the average measured temperature of the Earth's near-surface air and oceans since the mid-twentieth century, and its projected continuation.From that,we can know that there are many cause that making it happen.Through from it,we can find that deforestation is one of the main and important cause that causing global warming happen.

Deforestation mean that cutting down and removal of all or most of the trees in a forested area.Why deforestation can cause global warming happen?We know that trees provide oxygen to us and absorb the carbon dioxide.But,when deforestation happen,the amount of trees is decreasing but the population of human is increasing.So,there will be an unbalancing situation will happen.The percentage of carbon dioxide is high and the percentage of oxygen is going down.As we all know,carbon dioxide contain many heat and when the percentage of it increase with a lot,sure the heat will become a lot and our earth will become hot because from it.From it,global warming will happen and our earth is continue having high fewer because of it.So,we will ask,when the forest in our earth is gone,wat will happen?Maybe something very bad will happen.So,we have to protect it from happen with that we have to protect the forest.With that,i very interesting with this topic and very care for the forest and from that i decide to use the topic of deforestation as my small topic to create my symbol of global warming.

I start sketch my symbol with idea that i want to show that the forest or trees in our world is keep decreasing its amount.Beside that,i also want to show that when the forest is become less,our world start to become hot.
The thing that i put in for my symbol is earth and trees.Earth is the main of the topic of global warming because global warming is happen in it.For trees,it is the main thing in deforestation.because the number of it decreases,then the global warming will happen.

For my sketch,the center of the circle represent our earth and the two circle beside it is representing the heat that surrounding our earth.The two trees is moving out to the space like rocket is represent that our earth is start to out of trees because of deforestation.The colour that i choose :

earth : blue for the sea,green for the land that still have forest and brown for the land that the

forest have been destroy.

circle that around the earth : first round : red because the weather is become very hot.

second round : yellow because the air just increase a little only.

trees : green colour