When is Data Center Thermal Design Important? The usage of data centers globally has skyrocketed in the past three to four years in response to growing demand for information storage and transfer from banks, hospitals, government bodies, telecom operators and hosting facilities. Data center power load (and therefore heat dissipation) footprints are continuing to rise, with greenhouse gas emissions from data centers expected to overtake airline industry emissions by 2020 [Ref. 1]. Data centers already consume ~2% of total US electricity, growing at ~12% CAGR [Ref. 2].