Eco Here finalist Marina Cepeda

Published On: Mar 28 2013 07:27:06 PM EDT   Updated On: Mar 28 2013 08:19:31 PM EDT

Most teens dread speaking in front of the class, but not 13-year-old Marina Cepeda. She was hooked on saving the environment from the first day she joined her school's Earth Club. Now she's an Eco-Hero finalist.