"The standard 100-watt light bulb is going away, and its lower-wattage cousins are soon to follow."

"WASHINGTON — A federal tax credit for ethanol expired on Saturday, ending an era in which the federal government provided more than $20 billion in subsidies for use of the product."

"Early last year, deep in the forests of northern British Columbia, workers for Apache Corp. performed what the company proclaimed was the biggest hydraulic fracturing operation ever."

"WASHINGTON -- Four domestic companies that make most of the steel towers for wind turbines in the United States filed a trade complaint against China and Vietnam on Thursday, seeking tariffs in the range of 60 percent. The action is a significant new skirmish in an emerging green energy trade war.

"A federal judge finds that the state Air Resources Board's regulations discriminate against crude oil and biofuel makers outside the state."

"When it comes to coal mining in the United States, environmentalists have a simple goal: End it. For the Obama administration, it's a little more complicated. Since taking office nearly three years ago, the administration has restricted coal-mining waste from being dumped into streams and imposed new pollution controls on coal-fired power plants. But on the fundamental question of whether the government should halt federal leasing, the administration's answer has been: not yet."

Despite Iran's threat to close the Strait of Hormuz, some global oil prices fell. It turns out Iran's influence on the international oil market may be weak, and its threats more an effort to head off international sanctions that will harm its own weakened petroleum economy. Shipping lanes are just one of many major strategic factors affecting the global oil market. Iran has, however, offered spurious ammunition to U.S. politicians crowing for US acts of war against it. Right now, the news media are taking Iran's threats more seriously than the oil market is.

"After burning coal to light up Cincinnati for six decades, the Walter C. Beckjord Generating Station will go dark soon—a fate that will be shared by dozens of aging coal-fired power plants across the U.S. in coming years."

"BP has taken the axe to its solar power business, saying it 'can't make any money' from selling panels at a time when it continues to spend $20bn annually on oil and gas developments."