PlanetWatch http://www.planetwatch.org Alternative energy and the road to energy independence en-gb Is $4.00 Gas on the Way Again? http://www.planetwatch.org Oil reached $70 a barrel last week. We assess the forces at play that may make high priced gasoline permanent. Controlling Carbon? Using What for a Yardstick? http://www.planetwatch.org Companies are finding that attempts to reduce their carbon footprint are yielding other unexpected benefits that they've been missing all along.