"...how to[sic] we reduce the carbon footprint of our own bodies? A new paper, published in Ethics, Policy, and the Environment by NYU bioethics professor S. Matthew Liao, poses an answer: engineer humans to use less. The general plan laid out by Liao is straightforward, ranging from using pharmacological behavior modification to create an aversion to meat in people, to using gene therapy to create smaller, less resource-intensive children." (Quoted from article)