Also, as part of the lifecycle design process, the laptops meet Energy Star 5.0 for high energy efficiency and are rated EPEAT Gold in the U.S. for their environmental attributes.

ENGADGET: Lenovo ThinkPad L Series arrives for the eco-conscious professional

At the top of fundraising efficiency are nine charities rated at 100%: America's Second Harvest, Brother's Brother Foundation, Children's Hunger Fund, Christian Aid Ministries, Direct Relief International, Public Broadcasting Service, RBCMinistries, Surgical Eye Expeditions International and Tides Foundation.

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