unemployment is rife among ameni ben hassen's generation.r half the population of tunisia is under 30. many people she went to college with have yet to find work. but environmental engineering is a growth industry. >> our generation is the most affected by environmental issues. and now they've become a big part of our thinking. reporter: environmental protection and energy efficiency, new technologies that could give the tunisian economy a major boost, and the country's younger generation new opportunities. >> i am -- >> a global teen. anchor: now we're off to ireland to a global teen. he too is starting to think about his future. ♪ >> my name's cain, i'm 14 and i'm from dublin. i like playing football and playing games. fifa, barcelona, because they're the best in the world. i've got one brother. his name's christopher. >> hi. >> i don't know yet. but i'm going to try and do somemething with footbalall. i want t to have a a good fam. may: so, what do you need to grow thriving crops? soil, sun,