http://edition.cnn.com/CNNI/Programs/principal.voices/economics CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. en-us © 2008 Cable News Network LP, LLLP. Thu, 26 Jun 2008 11:46:19 EDT 10 http://edition.cnn.com/CNNI/Programs/principal.voices/economics http://i2.cdn.turner.com/cnn/.element/img/1.0/logo/cnn.logo.rss.gif 144 33 CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. http://edition.cnn.com/2008/TECH/science/05/13/Oilbriefing/index.html http://edition.cnn.com/2008/TECH/science/05/13/Oilbriefing/index.html We rely on it to power our everyday lives, and it drives the economy worldwide, but oil faces an uncertain future in the 21st century. Black gold is increasingly expensive, environmentally damaging and, in the view of some experts, increasingly scarce. Thu, 26 Jun 2008 11:45:26 EDT http://edition.cnn.com/2008/TECH/science/03/31/windpower/index.html http://edition.cnn.com/2008/TECH/science/03/31/windpower/index.html Since it became a viable energy resource around 20 years ago, wind power has emerged as a leading renewable technology. Fri, 20 Jun 2008 01:02:09 EDT http://edition.cnn.com/2008/TECH/science/04/03/EofE.gal/index.html http://edition.cnn.com/2008/TECH/science/04/03/EofE.gal/index.html Fri, 20 Jun 2008 00:56:56 EDT http://edition.cnn.com/2008/TECH/science/05/02/Smartgrids/index.html http://edition.cnn.com/2008/TECH/science/05/02/Smartgrids/index.html Whilst the energy grids we rely on to provide us with cheap and reliable electricity may have been fit for purpose in the 20th century, it is now abundantly clear that the design of 21st century energy networks will have to be very different. In Europe, the foundations for a secure, flexible and more energy efficient future are already being laid. Fri, 20 Jun 2008 00:54:27 EDT http://edition.cnn.com/2008/TECH/science/05/30/Biofuels.opinion/index.html http://edition.cnn.com/2008/TECH/science/05/30/Biofuels.opinion/index.html It wasn't so long ago that biofuels were being heralded as the savior of the planet and a thoroughly green solution to our climate woes. But fair winds have been replaced by persistent storms of criticism. But is it justified? Principal Voices has spoken to three people -- an economist, a scientist and an environmental campaigner -- at the heart of the biofuels debate. Here, they have their say on biofuels. Have yours at bottom of the page. Fri, 13 Jun 2008 08:03:12 EDT http://edition.cnn.com/2008/BUSINESS/06/09/clean.diesel.ap/index.html http://edition.cnn.com/2008/BUSINESS/06/09/clean.diesel.ap/index.html Read full story for latest details. Mon, 09 Jun 2008 09:10:26 EDT http://edition.cnn.com/2008/TECH/science/05/29/mubarak.doha/index.html http://edition.cnn.com/2008/TECH/science/05/29/mubarak.doha/index.html This year we thought we'd move the focus from the stage to the floor to give audience members another opportunity to participate in the discussion. Mon, 09 Jun 2008 03:31:31 EDT http://edition.cnn.com/2008/TECH/science/06/05/biofuels.Rome2/index.html http://edition.cnn.com/2008/TECH/science/06/05/biofuels.Rome2/index.html The merits of increasing biofuel production in the middle of a crisis over skyrocketing food prices is being hotly debated at a United Nations summit, but the top U.S. delegate says consensus on the issue is possible. Thu, 05 Jun 2008 10:11:13 EDT http://edition.cnn.com/2008/TECH/science/06/04/biofuels.Rome/index.html http://edition.cnn.com/2008/TECH/science/06/04/biofuels.Rome/index.html Leaders gathered at a summit on the world's food crisis quickly laid out their disagreements on a key issue: how much the rush for environmentally friendly biofuels is contributing to soaring prices that are causing hunger and unrest worldwide. Wed, 04 Jun 2008 05:18:41 EDT http://edition.cnn.com/2008/TECH/science/06/02/Adelegan.doha/index.html http://edition.cnn.com/2008/TECH/science/06/02/Adelegan.doha/index.html Nowhere is the need for cheaper, renewable energy more apparent than Africa. There, the poorest villagers huddle around candles because even kerosene is too expensive. Mon, 02 Jun 2008 12:25:53 EDT