for example, high school freshman leandrea martinez went into sudden shock after eating a sunflower seedt school. a teacher injected an epipen, and the girl recovered. >> it really doesn't. it's easy to do. we've been trained here. we train every year at it. as a first responder, i look at it as my duty to make sure every student i treat as my own, make sure i give them the best care i can give them at the time. >> if they didn't have it, i could have died. you never know. and that scares me. i feel great. i feel happy. and i'm thankful for my teachers that were there to help me. >> difficulty breathing. >> reporter: 15 million people in the united states are said to be allergic to some kind of food. while nearly half of the u.s.'s 50 states have laws requiring schools to stock epipens, other states are still debating legislation to save children. john ellis-guardiola, nhk world. >>> global prices for oil and liquefied natural gas are going up. so electric companies are taking a second look at coal. the fossil fuel has a reputation for being dirty and dangerous to people's health, but te