write about ( The reason that the earth's weather has changed so much in the last century)

1- It is  a Cause and effect essay, so i need to write the first pargraph about the cause and than three or four pargraphs about effect. 

2- At least 800 words. 

3- Use Resorces at least 2 

3- i need outline for the essay and should have three important point:

  - Thises .

  - three or four Body pargraph.

  - Conclusion.