In the Rocky Mountain States and the fast-growing desert Southwest, more than 20 power plants, designed to burn coal that is plentiful and cheap, are on the drawing boards. Much of the power, their owners expected, would be destined for the people of California. But such plants would also be among the country’s most potent producers of carbon dioxide, the king of gases linked to global warming. So California has just delivered a new message to these energy suppliers: If you cannot produce power with the lowest possible emissions of these greenhouse gases, we are not interested.

“When your biggest customer says, ‘I ain’t buying,’ you rethink,” said Hal Harvey, the environment program director at the William and Flora Hewlett Foundation, in Menlo Park, Calif. “When you have 38 million customers you don’t have access to, you rethink. Selling to Phoenix is nice. Las Vegas is nice. But they aren’t California.” California’s decision to impose stringent demands on suppliers even outside its borders, broadened by the Legislature on Aug. 31 and awaiting the governor’s signature, is but one example of the state’s wide-ranging effort to remake its energy future.

The Democratic-controlled legislature and the Republican governor also agreed at that time on legislation to reduce industrial carbon dioxide emissions by 25 percent by 2020, a measure that affects not only power plants but also other large producers of carbon dioxide, including oil refineries and cement plants.

The state’s aim is to reduce emissions of climate-changing gases produced by burning coal, oil and gas. Other states, particularly New York, are moving in some of the same directions, but no state is moving as aggressively on as many fronts. No state has been at it longer. No state is putting more at risk.

Whether all this is visionary or deluded depends on one’s perspective. This is the state that in the early 1970’s jump-started the worldwide adoption of catalytic converters, the devices that neutralize most smog-forming chemicals emitted by tailpipes. This is the state whose per capita energy consumption has been almost flat for 30 years, even as per capita consumption has risen 50 percent nationally.

Taking on global warming is a tougher challenge. Though California was second in the nation only to Texas in emissions of carbon dioxide in 2001, and 12th in the world, it produced just 2.5 percent of the world’s total. At best, business leaders asked in a legislative hearing, what difference could California’s cuts make? And at what cost? California, in fact, is making a huge bet: that it can reduce emissions without wrecking its economy, and therefore inspire other states — and countries — to follow its example on slowing climate change.

Initiatives addressing climate change are everywhere in California, pushed by legislators, by regulators, by cities, by foundations, by businesses and by investors. Four years ago, California became the first state to seek to regulate emissions of carbon dioxide from automobile tailpipes. Car dealers and carmakers are challenging the law in federal court. In late August, Gov. Arnold Schwarzenegger signed a measure requiring builders to offer home buyers roofs with tiles that convert sunlight into electricity. Homeowners in some communities are already choosing them to reduce their electric bills.

California, which has for decades required that refrigerators, air conditioners, water heaters and other appliances become more energy efficient, just added to the list: first, chargers for cellphones or computers; second, set-top boxes and other remote-controlled devices. Those categories consume up to 10 percent of a home’s power. Last fall, California regulators barred major investor-owned electrical utilities from signing long-term contracts to buy energy unless the seller’s greenhouse-gas emissions meet a stringent standard.

“We are dealing with it across the board,” said Michael R. Peevey, the president of the Public Utilities Commission. By contrast, the Bush administration has been averse to any legislative assault on climate change. Opponents say California may hurt its own residents with its clean-energy mandate. Scott Segal, a lawyer for Bracewell & Giuliani who represents electric utilities, summarized California’s policy as: “All electrons are not created equal. We’re going to discriminate against some of them, and create artificial barriers in the marketplace for electricity.” California consumers could end up paying more for their energy and struggling to find enough, Mr. Segal said.
(By FELICITY BARRINGER, NYT , 15/09/2006)