Rudy Nielsen, RI Input, Spring 2013 Poets, theologians, and sensitive types might disagree, but we humans must eat to live. We have no choice. Unless you’re skinned in chlorophyll or are a successful “breatharian” (supposedly able to live solely on fresh air and sunlight), we all need grub, calories. There are a lot of us—seven billion plus with more to come. Global population growth is finally trending down, but the UN estimates that 2045 will see nine billion hungry humans,