Editor's Perspective

The environmental halo over the politically angelic head of biofuels is growing a new layer of rust.

While his state teeters financially, outgoing California Gov. Arnold Schwarzenegger is sweeping up environmental awards.

The US Supreme Court plans to address legal questions with potential to expose emitters of greenhouse gases to huge liability for harm from natural phenomena.

For the US renewable-fuel standards program, real-world events raise questions of credibility.

Debt pressures in Europe enhance the importance of low-profile meetings held Nov. 22-23 in London on interactions between physical and financial markets in energy.

A new round of asset purchases by the US Federal Reserve cloaks the price of crude oil with yet more mystery.

From Saudi Arabia, US bluster about energy independence must look delusional.

The eminences who convey the Nobel Peace Prize have taken a jolt from America.

Return of the US House of Representatives to Republican control–uncertain at this writing but considered likely—offers hope too easily obscured by spicier controversies preceding Nov. 2 elections.

Jockeying seems to have resumed in the Organization of Petroleum Exporting Countries over reserves estimates, reviving questions about what these numbers mean--and what they do not.

A partial waiver in the US of a 10% limit on the ethanol content of gasoline serves two masters: the ethanol lobby and Democratic lawmakers who can’t admit mistakes. For all other Americans—tough.

A costly slowdown in permitting of shallow-water drilling in the Gulf of Mexico shows in microcosm how regulatory juggernauts wreck economies.

Whether or not the world faces ruinous warming, debate over the issue of climate change has taken a welcome turn toward reason.

Creatures of government lead strange lives. Biodiesel, for example.

The phrase “global warming” soon may go the way of “gasohol”—and for similar reasons.

Reality has vanquished a fundamental myth about US gasoline prices—and the myths behind it.

Responding to criticism for letting politics sway science, the head of the Intergovernmental Panel on Climate Change resorted to politics.

Development of unconventional gas resources is overhauling more than markets. It’s changing companies, too.

The Apr. 20 blowout of the Macondo wildcat off Louisiana, with its 11 deaths and consequent oiling of the Gulf of Mexico, wasn’t bad enough to suit some people.