Apple’s latest data center in Denmark will be powered by renewable energy, some of which will come from local farm waste, MacWorld reports. Apple is working with Aarhus University to create a system that uses agricultural waste products to generate methane, which can then be used to power its data center operations. The reaction also produces a nutrient-rich fertilizer that can be returned to the farms, a “mutually beneficial relationship” according to Apple’s recent environmental report. The heat generated by the data center will also be captured and rerouted to the local district’s heating system to warm homes in the community. The Danish facility and another in Ireland expected to be partially powered by energy generated by ocean waves will come online this year.