Sustainability

http://www.ift.org/Knowledge-Center/Learn-About-Food-Science/World-Without-Food-Science/Sustainability.aspx

In a world without food science, much of the food produced would be lost to spoilage and waste. Food scientists work to conserve resources during the entire chain of production. They make sure land and water are conserved and protected as a crop is grown and as a food product is made. They create packaging that is reduced, recycled and reusable to minimize waste. They place food production plants in areas where food can be transported and distributed efficiently.

Here's a video: 

https://www.youtube.com/watch?v=HqTJdDBQtvw