We will now examine the livestock and seafood industries, which we have touched on in previous modules as a key driver of the global food system. As incomes rise around the world, so too does the global collective appetite for meat. Some of our greatest challenges and debates of the 21st century are rooted in the rising demand for animal protein in an era of dwindling resources and climate change. NOTE: This lecture refers to other lectures offered in this or related full for-credit courses at the Bloomberg School of Public Health.