How to Less carbon footprint? I'm not sure !???

After reading the article about an article Yes, They Could. So They Did. by Thomas Friedman, I feel really guilty that I did not do things like that. However, another feeling I have is do not know what to do to contribute thing like that to community.
After thinking this for a class, I think I should think out of box and with some crazy ideas not conventional ideas. From this semester's global ethics class topic "can a individual make difference", I think that I can do it and with weird and new ways. Although, trying to find a weird and new ways is hard, when new crazy idea come up it will "crazy" the people.
In conclusion, I think that in order to lose carbon footprint we should meet like our grad trip meeting and think critically.