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Gene Ellis

Beijing's Bad Air Would Be Step Up for Smoggy Delhi - NYTimes.com - 0 views

www.nytimes.com/...-step-up-for-smoggy-delhi.html

delhi air beijing

shared by Gene Ellis on 26 Jan 14 - No Cached
  • Beijing’s Bad Air Would Be Step Up for Smoggy Delhi
Gene Ellis

What If We Never Run Out of Oil? - Charles C. Mann - The Atlantic - 0 views

www.theatlantic.com/...4

oil

shared by Gene Ellis on 15 Jan 14 - No Cached
  • In most cases, mining tar sands involves drilling two horizontal wells, one above the other, into the bitumen layer; injecting massive gouts of high-pressure steam and solvents into the top well, liquefying the bitumen; sucking up the melted bitumen as it drips into the sand around the lower well; and then refining the bitumen into “synthetic crude oil.”
  • Economists sometimes describe a fuel in terms of its energy return on energy invested (EROEI), a measure of how much energy must be used up to acquire, process, and deliver the fuel in a useful form. OPEC oil, for example, is typically estimated to have an EROEI of 12 to 18, which means that 12 to 18 barrels of oil are produced at the wellhead for every barrel of oil consumed during their production. In this calculation, tar sands look awful: they have an EROEI of 4 to 7. (Steaming out the bitumen also requires a lot of water. Environmentalists ask, with some justification, where it all is going to come from.)
  • To obtain shale gas, companies first dig wells that reach down thousands of feet. Then, with the absurd agility of anime characters, the drills wriggle sideways to bore thousands of feet more through methane-bearing shale. Once in place, the well injects high-pressure water into the stone, creating hairline cracks. The water is mixed with chemicals and “proppant,” particles of sand or ceramic that help keep the cracks open once they have formed. Gas trapped between layers of shale seeps past the proppant and rises through the well to be collected.
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  • Water-assisted fracturing has been in use since the late 1940s, but it became “fracking” only recently, when it was married with horizontal drilling and the advanced sensing techniques that let it be used deep underground. Energy costs are surprisingly small; a Swiss-American research team calculated in 2011 that the average EROEI for fracked gas in a representative Pennsylvania county was about 87—about six times better than for Persian Gulf oil and 16 times better than for tar sands. (Fracking uses a lot of water, though, and activists charge that the chemicals contaminate underground water supplies.)
  • Today, a fifth of U.S. energy consumption is fueled by coal, mainly from Appalachia and the West, a long-term energy source that has provided jobs for millions, a century-old way of life
  • and pollution that kills more than 10,000 Americans a year (that estimate is from a 2010 National Research Council study).
  • Roughly speaking, burning coal produces twice as much carbon dioxide as burning the equivalent amount of natural gas. Almost all domestic coal is used to generate electricity—it produces 38 percent of the U.S. power supply. Fracking is swiftly changing this: in 2011, utilities reported plans to shut down 57 of the nation’s 1,287 coal-fired generators the following year. Largely in consequence, U.S. energy-related carbon-dioxide emissions have dropped to figures last seen in 1995. Since 2006, they have fallen more than those from any other nation in the world.
  • In the sort of development that irresistibly attracts descriptors like ironic, Germany, often touted as an environmental model for its commitment to solar and wind power, has expanded its use of coal, and as a result is steadily increasing its carbon-dioxide output. Unlike Americans, Europeans can’t readily switch to natural gas; Continental nations, which import most of their natural gas, agreed to long-term contracts that tie its price to the price of oil, now quite high.
  • Several researchers told me that the current towel-snapping between Beijing and Tokyo over islands in the East China Sea is due less to nationalistic posturing than to nearby petroleum deposits.)
  • In mid-March, Japan’s Chikyu test ended a week early, after sand got in the well mechanism. But by then the researchers had already retrieved about 4 million cubic feet of natural gas from methane hydrate, at double the expected rate.
  • What is known, says Timothy Collett, the energy-research director for the USGS program, is that some of the gulf’s more than 3,500 oil and gas wells are in gas-hydrate areas.
  • In Dutch-disease scenarios, oil weakens all the pillars but one—the petroleum industry, which bloats steroidally.
  • Because the national petroleum company, with its gush of oil revenues, is the center of national economic power, “the ruler typically puts a loyalist in charge,” says Michael Ross, a UCLA political scientist and the author of The Oil Curse (2012). “The possibilities for corruption are endless.” Governments dip into the oil kitty to reward friends and buy off enemies. Sometimes the money goes to simple bribes; in the early 1990s, hundreds of millions of euros from France’s state oil company, Elf Aquitaine, lined the pockets of businessmen and politicians at home and abroad.
  • How much of Venezuela’s oil wealth Hugo Chávez hijacked for his own political purposes is unknown, because his government stopped publishing the relevant income and expenditure figures. Similarly, Ross points out, Saddam Hussein allocated more than half the government’s funds to the Iraq National Oil Company; nobody has any idea what happened to the stash, though, because INOC never released a budget. (Saddam personally directed the nationalization of Iraqi oil in 1972, then leveraged his control of petroleum revenues to seize power from his rivals.)
  • “How will the royal family contain both the mullahs and the unemployed youth without a slush fund?”
  • It seems fair to say that if autocrats in these places were toppled, most Americans would not mourn. But it seems equally fair to say that they would not necessarily be enthusiastic about their replacements.
Gene Ellis

As LED Industry Evolves, China Elbows Ahead - NYTimes.com - 0 views

www.nytimes.com/...lbows-its-way-to-the-fore.html

shared by Gene Ellis on 05 Feb 15 - No Cached
  • As LED Industry Evolves, China Elbows Ahead
  • “LED lighting could see itself become the next solar, wind or other future opportunity that the U.S. will have given away by failing to address Chinese industrial policies and unfairly traded products,”
  • SolarWorld, a solar panel maker that complained to the American government about what it considered unfair advantages for Chinese competitors, was later the victim of a cyberattack by Chinese military officials, according to a recent indictment by the Justice Department.
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  • American, European and Chinese regulators have put in effect energy-efficiency rules that phase out the use of incandescent bulbs. Big multinationals that make light bulbs like Philips, Osram and General Electric have responded by embracing light-emitting diodes, which use one-fifth of the electricity of incandescent bulbs and half the electricity of fluorescent bulbs.
  • Many Chinese producers also have a poor and worsening reputation for quality, which may hurt them in the long term.
  • The industry, for instance, is highly segmented.
  • Lighting accounts for about 6 percent of the world’s emissions of greenhouse gases, and LEDs have the potential to steeply reduce them.
  • Prices have fallen by nearly half in the last year for low-end, low-wattage LEDs made in China, and by 15 to 20 percent for the higher-wattage versions made elsewhere, buyers and manufacturing executives said.
  • “We do not buy Chinese LEDs,” said Mike Pugh, the procurement director at Xicato in San Jose, Calif., a large provider of indoor lighting systems for retailers and hotels. “We just can’t take that chance.”
  • Xicato instead buys LEDs from multinationals like Cree of Durham, N.C.; Philips Lumileds, based in San Jose, Calif.; and Osram Opto Semiconductors of Regensburg, Germany.
  • Three-quarters of China’s electricity still comes from burning coal, which contributes to severe air pollution as well as global warming.
  • The Chinese LED industry has created tens of thousands of well-paid jobs for young community college graduates
  • She earns $500 a month plus medical benefits and free food and lodging in an air-conditioned dormitory where employees sleep four to six i
  • the solar and LED industries in China received huge loans at low interest rates from state-owned banks following directives from Beijing
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