Junior Project, topics, which one?

I was thinking about what to write my junior final project... i have came up with this topics...





Air Pollutions





Global Warming





No cell phones in the car "when driving"





which one would be better to write about? or any other ideas topics?



Air pollution - too technical if you want it to be any good





Global Warming - too vague, you'll never make a cohesive argument





Cell phones - the best of these 3 choices, a small enough topic with definite arguments




air pollution or global warming only because then you can put in your views to make it longer and your not really going to get the answer wrong, no matter what you write. so which ever you can talk more about in a knowledgeable way.




I would Choose global warming. Its way interesting and theres alot to talk about in that subject.




cell phones is the easiest