Ask 10 people what "sustainability" means to them, and you'd probably get 10 different answers. Its dictionary definition is simple: the ability to sustain something at its current level. And dairy companies, many of which have already existed for over a century, might know a thing or two about that.

Communities, industries, businesses and consumers are seeking options to incorporate renewable energy for many reasons, whether it is to offset the rising cost of fossil fuels, to be energy independent or to reduce the strain of a growing population depleting finite resources.