According to UN World Food Program, there’re over 1 billion hungry people on Earth. On World Food Day, World Food Program (WFP) is showing how, the estimated one billion internet users, can help the one billion people who live in hunger. Nonprofit Action Against Hunger is calling on Al Gore to create a video about hunger. And singer Christina Aguilera is lending her voice to the cause with following video. if every person donated $1 to feed hungry each time they viewed a YouTube video, we'd be a lot closer to a hunger-free world, YouTube blog.