(indistinct) (scraping) - we're gonna interview sakalia, which is the leader of this islet, to tell usbio-gas and why did they want it here. (speaking in tuvaluan) - okay, so it's a tank where they fill all the pigs feces inside. (speaking in tuvaluan) that pig feces will make up the gas from it, which is called the bio-gas. (speaking in tuvaluan) okay, so the pig feces, they will get it from the pig pen. (pig oinking) they'll fill it into these tanks. so he got his bio-gas from the government. so the government help him to get to know that they actually have bio-gas and he actually got it from them, to here. (speaking in tuvaluan) okay, so before he got this bio-gas, this tank, he used to order the gas, like the actual gas bottle from the mainland and they'll transport it here. now he's gonna on it. (clicking) it's free gas. he's gonna keep this bio-gas here forever. - yay! (clapping) (soft music) (children chattering) - this is a school program. right now with the environment, they ask to take out children into, like to go out of the classroom, to help clean the environment. all the