December 21, 2016
The earth is currently populated with 7 billion people. And by 2050, there will be 2 billion more. How will we feed all of them without overwhelming the planet?
That is the question students sought to answer in Sustainable Food Systems, a fall-semester seminar led by Alissa Packer, associate professor of biology at Susquehanna University.
Though it is an upper-level biology class, Packer acknowledged that it covers topics of interest to anyone.
"This class is about understanding the full progression of the food we eat-from seed to store to plate-and everything that is involved," she said. "We also dive into how the decisions we make as consumers affect the way food is grown."
Packer's course also taught students to identify the costs and benefits of industrial food systems and identify components of sustainable food systems, as well as the costs and benefits of these alternate models.
Throughout the semester, students visited Owens Farm, of nearby Sunbury, where animals are raised with no chemicals or growth hormones and are grass-fed; and Ard's Farm, of Lewisburg, which uses sustainable agricultural practices such as no-till farming, crop rotation and low-density animal farming.
Guest speakers instructed on topics ranging from food banking to aquaponics, a symbiotic system of aquaculture in which the waste produced by farmed fish supplies nutrients for plants grown hydroponically (in water), which in turn purify the water.
During their final classes, students presented their own research. Eileen Gonzalez, a senior biology major from Miami, Fla., discussed the opportunities and barriers to sustainable college campuses. She advocated for serving food that is chemical-, pesticide- and hormone-free, seasonal menus with less meat, and composting and recycling fry oil.
"Colleges can foster a culture of sustainability by offering interdisciplinary courses like this one, classes that connect us to social and natural sciences," Gonzalez said. "We've been targeted too long as individual consumers when it's larger organizations that can make the most impact."