>> reporter: little nafisa, a year old weighs barely more than a newborn. >> she's so tiny for a year>> naf easea gets a color-coded arm band. red is the result they see more and more each day. >> this one is malnourished. >> reporter: she'll be moved into another tent with these children getting a meal, a supplement of peanuts and vitamins. on another morning, we come upon a school, not far from a town called nurody. this bowl of porridge is the only meal the children will get today, but the vast majority of children here don't even go to school. the region is so undeveloped and so vast, 18 million people across nine countries, including as many as three million children, that to really make a difference, it will take a humanitarian effort on a much bigger scale. for them to do that, they say the nations of the world need to send more help. >> 45 kilometers up, basically through the sand to get to this village, which is very hard to find. >> we meet up with denise brown of the world food program who takes us to see how other families are coping with the crisis. when we reach the vill

little nafisa, 1 year old, is red.he weighs just eight pounds, what many american babies weigh at birth. today she is lucky. she'll get a meal, a nutritional supplement made up of peanuts and vitamins, a meal from the aid groups here, who are sounding the alarm now, before this turns into an all-out disaster. >> i don't think any of us can accept that this mother has to go and pick wild food for her children to eat, and if she doesn't go and do it every day, then they don't have anything to eat. >> and for all of you who want to help, a few dollars can make a big difference. one dollar donated to unicef can immunize two children against measles. $10 to save the children can provide a week's north of nutrition for a starving child. and we have a full list of aid groups and what they do. go to abcnews.com to find them. >>> coming up here, the sky is falling. parts of passenger jets raining down on neighborhoods, from red-hot engine parts to cargo doors. why the passengers on the plane may be safer than the people on the

little nafisa weighs barely more than a newborn.l get moved into these lines to get special nutritional supplements. but aid agencies say these supplies are limited and they need more before it's too late. >> these people, these women, these children, they deserve our attention. they deserve our time. >> reporter: aid agencies are trying to help as many people as they can. so far they've been able to raise not even half of the funds they need to reach the millions of families who will run out of food before the next harvest this fall. bosi kanani, abc news, niger. >> that will put our problem ooze. >> sobering. >> wow. if you do want to donate and i'm motivated to do it after seeing that go to our fan page, wnnfans.com and find out some charities you can donate to. >> the things we're worried about, it puts it in a whole new light. >> all about perspective. >> we encourage you to go to our website as well and help if you can. >>> coming up next -- hunks of airline junk falling from the sky. >> the growing threat after this week's ca