Warren Buffett's middle son, Howard, fights global war against hunger after realizing that environment can't be saved if people aren't fed (click 'See also'). Among his foundation's Africa projects in progress: Obtaining for corn breeders royalty-free access to Monsanto's biotechnology for drought-tolerant seed, developing disease-resistant sweet potato, helping farmers sell crops to UN hunger-relief programs. Number of chronically hungry people expected to climb this year to 1.02 billion, up 11.5 percent from 2008.