Three oil companies today announced a major oil discovery in the Gulf of Mexico. The deep-water well may be one of the biggest finds in recent years — and could boost U.S. oil and gas reserves by 50 percent. Sarah Gardner reports.
Small cities are demanding higher energy efficiency standards and not just in "green" pockets of the country like California or the Pacific Northwest. Sarah Gardner visits one such town, deep in the heart of Red America.
California officials warn of possible rolling blackouts if the current heat wave pushes energy use beyond supply capacity. Sarah Gardner takes a look at the economic toll the last time the Golden State faced rolling blackouts.