Across the world , cooking smoke is killing an estimated 4 million people every year . Irma , 18 , had fallen into an open fire as a toddler , and her hands were literally burned shut . Comment: The stoves are built locally using local materials , so they also provide an economic boost . Do you know a hero ? Nominations are open for 2013 CNN Heroes .
Across the world , cooking smoke is killing an estimated 4 million people every year . Comment: The stoves are built locally using local materials , so they also provide an economic boost . Do you know a hero ? Nominations are open for 2013 CNN Heroes .