Hari Sreenivasan explores the causes and effects of our oceans' waning coral reefs.
Ray Suarez takes a look at the slow transition from coal-powered energy to natural gas.
Miles O'Brien participates in a study that attempts to determine the connection between drug and alcohol addiction and individual genetic code.
Elana Michelle reports on pollution in the Chesapeake Bay, how it affects the watershed, and the roles of government and citizens in this environmental crisis.
Correspondent Spencer Michels gets a lesson in space technology and career education from the NASA team leader of the Mars Rover mission.
Elana Michelle investigates why young athletes are incurring more concussions during team sports.
Julie Iriondo reports on the 100th anniversary of the famous Antarctic expedition by Sir Ernest Shackleton to be recreated in 2014 with modern equipment.
Correspondent Miles O'Brien investigates scientific experiments on chimpanzees and the ethical implications for animal rights.
Correspondent Thai Da Silva investigates a national trend that uses technology applications to engage in local politics and citizenship.
Correspondent Collette Hicks follows 8th grader Allison Martin who gets vital support with her diabetes from her service dog, Stuart.