from. >> a lot of the yuca and banana plants are dying off. i planted new ones, but they died too. so i got fruit from the village market, and it made the children sick. i think everything has been contaminated here. >> we ask him to show us the source of the contamination. we only have to travel a short distance on the rio napo, the biggest river in yasuni national park. and so that the children learn something, they come along also. we soon arrived at the first gas flare, one of the many in the area that are always burning. less than one kilometer away, we need a group of workers who are using barriers and hoses to clean the angst of leaded oil. nowhere is there a greater variety of flora and fauna species. but the wealth in the region that interests ecuador's government is in crude form, underground, or was, at least, until 45 years ago, when the state started extracting the oil. since then, much of the nature preserve has changed. only a few areas remain untouched. so in 2007, ecuador's president proposed not drilling in the area if the in