here's an intersting I dea I use often in my papers, think of starting with a qesutions, like
Here are 2 ways I would start:
"'What's goin on with Air pollution today?' have you ever heard people around you just talking about everday topics, well one common topic is Air pollution....etc
OR-and I think this one is better and easeir...
"'Have you ever wanted to change the wolrd...?' Well I have, and I have realized that I can do my part to prevent Air pollution. (here you just gotta let it flow-the harder part) Air polution is caused by...etc, something like daily activites or something, a way to prevent, idk
-It's harder to try and give you tips without seeing your actual paper...but you can even start off with a joke, a qeustion, heck one time I even started with sarcasim...
Good luck with your paper :)