PC manufacturer Dell Inc. has announced plans to go entirely carbon neutral by next year. (Take that, Nokia!) The company will focus on energy efficiency and renewable power, and offset additional emissions. In addition, Dell’s “Plant a Tree for Me” program, wherein customers can direct funds to global tree planting, will expand to “Plant a Forest for Me,” a partnership with other organizations to facilitate sustainable reforestation. No doubt Dell, which recently lost its No. 1 spot in the PC market, hopes new green measures will help it turn over a new leaf.