A letter writing campaign has to involve writing letters right? So in  a letter writing campaign you write letters to companies or stores or any type of oraganazation. You write these letters to tell them what your needs and wants are for their companey. In my case I would write about  the climate getting worse.              Example-

Your companey should lessen the amount of CO2 in the air produced by the companey because if you don't the air quality won't get better, People will still be doing it because your not showing them what the next step is and lastly the climte will rise so the earth will get hotter. So in conclusion you should lower the amount of CO2 your companey  and lots of other companies just like you produces!

-Norah