Getting to the heart of these issues, the event will reflect passion, case studies, experiences and current practice as well as academic debate.

UNESCO: Do street trees have a future

The Iron Bowl between the University of Alabama and Auburn ignites passion in Alabama like no other event.

FORBES: Magazine Article

The special will feature celebrity arrivals and interviews as well as a celebrity-hosted social media suite that will tap into the worldwide online passion and interest in the Heroes event.

CNN: Five years of honoring CNN Heroes