Who, What, Where, When, Why, How?

Who - The character you just created.
nauj
Where - Where does the action take place?
in his home planet and earth
When - When does the action take place?
on his birthday
What - What is the problem the character is facing? (bullying, environmental, - this is where your topic goes)
Global warming
Why - Why is this issue important to your character?
Because clean air is the only way to go home to his planet
How - How is your character going to overcome this problem?
By helping the humans clean up earth and shut down factories.