"Truckers want tougher enforcement and point to competitors who violate state rules to install filters or upgrade to cleaner engines."

"Japan is on the verge of being without nuclear power again with the scheduled shutdown of Kansai Electric Power Co.'s No. 4 reactor at the Oi power plant for a regular safety inspection."

"California legislation that orders the first-ever state oversight of hydraulic fracturing neared final passage yesterday, even after nearly all environmental groups dropped their support."

"DETROIT — Automakers are making slow but steady progress improving fuel efficiency, as the industry hit a high for the average miles per gallon of new vehicles sold in August in the United States."

"The Senate on Wednesday plunged into its biggest debate on energy policy in years, by taking up a modest, bipartisan bill that aims to boost the efficiency of buildings nationwide."

"The Senate is debating a bipartisan energy bill this week that if passed would become the first substantial energy legislation in six years."

"Pavillion, Wyo., is a tiny community of fewer than 300 people, nearly 2,000 miles from Washington, D.C., in a deeply Republican state that President Obama never had any chance of winning. But Obama's top aide on energy issues, Heather Zichal, took a significant interest in the community's water supply in late 2011 and early 2012."

"This month, the Environmental Protection Agency will propose standards that will establish stricter pollution limits for gas-fired power plants than coal-fired power plants, according to individuals who were briefed on the matter but asked not to be identified because the rule was not public yet."

"As the State Department drags out the approval of the Keystone XL pipeline, it is more likely President Barack Obama's final decision on the project to help link Canada's oil sands to U.S. refineries will slip into 2014, experts said."