HP announced a goal to reduce the emissions intensity of its product portfolio by 40 percent by 2020 compared to 2010 levels. The carbon reduction goals apply to all three parts of its value chain—operations, supply chain and product portfolio.

The company cited its work in improving data center efficiencies by developing energy-efficient solutions such as the HP Moonshot server architecture, which consumes up to 89 percent less energy, uses 80 percent less space and costs 77 percent less than a traditional server environment.
http://www8.hp.com/us/en/hp-news/press-release.html?id=1795264#.VCOikvk4TsU