In 2003, Stanford University spin-out company Cooligy showed off its Active Micro-Channel Cooling (AMC) technology which allowed fluids to circulate through hundreds of tiny channels on the upper surface of a chip.
They are curbing run-away energy with a combination of micro-level controls (for individual servers, power distribution units, air-flow controllers, and cooling units) as well as macro-level controls and policies (for racks of servers, rows of racks, and entire data centers).