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To do so, CO2 emissions from industry and energy use would have to fall to at most 1.6 tons a year for every person on the planet by midcentury.

That is less than a tenth of annual American emissions per person today and less than a third of the world average

Lacking any understanding of the feasibility of the exercise, governments postured and jockeyed over which country should be responsible for what

This is not achievable by going after low-hanging fruit, such as replacing coal with natural gas in power plants.

The decarbonization paths rely on aggressive assumptions about our ability to deploy new technologies on a commercial scale economically.

Russia, for instance, hit the target. But Oleg Lugovoy of the Environmental Defense Fund, who worked on the Russian plan, observed that “if we don’t have carbon capture and storage we would have to reconsider.”

After adjusting for multiple sources of bias and differences in sample construction, we establish that (1) the U.S. high school graduation rate peaked at around 80 percent in the late 1960s and then declined by 4-5 percentage points; (2) the actual high school graduation rate is substantially lower than the 88 percent official estimate; (3) about 65 percent of blacks and Hispanics leave school with a high school diploma and minority graduation rates are still substantially below the rates for non-Hispanic whites.

Heckman, Lochner, and Todd (2008) show that in recent decades, the internal rate of return to graduating high school compared to dropping out has increased dramatically and is now over 50 percent

These trends are for persons born in the United States and exclude immigrants. The recent growth in unskilled migration to the U.S. further increases the proportion of unskilled Americans in the workforce apart from the growth due to a rising high school dropout rate.

The most significant source of bias in the official statistics comes from including GED (General Educational Development) recipients as high school graduates.

A substantial body of scholarship summarised in Heckman and LaFontaine (2008) shows that the GED program does not benefit most participants, and that GEDs perform at the level of dropouts in the U.S. labour market.

Men now graduate from high school at significantly lower rates than women

Evidence suggests a powerful role of the family in shaping educational and adult outcomes. A growing proportion of American children are being raised in disadvantaged families.

We have long known that portfolio and short-term inflows fuel consumption booms and real-estate bubbles, with disastrous consequences when market sentiment inevitably sours and finance dries up. Governments that enjoyed the rollercoaster ride on the way up should not have been surprised by the plunge that inevitably follows.

They must resist the temptation to binge on foreign finance when it is cheap and plentiful.

It is true, but unhelpful, to say that governments have only themselves to blame for having recklessly rushed into this wild ride. It is now time to think about how the world can create a saner balance between finance and the real economy.

Death by Finance

But three years later, the same row erupted again: Gazprom demanded a price hike to $400-plus from $250, Kiev flatly refused, and on New Year's day 2009, Gazprom began pumping only enough gas to meet the needs of its customers beyond Ukraine.

Again, the consequences were marked. Inevitably, Russia accused Ukraine of siphoning off supplies meant for European customers to meet its own needs, and cut supplies completely

several countries – particularly in south-eastern Europe, almost completely dependent on supplies from Ukraine – simply ran out of gas.

Bulgaria shut down production in its main industrial plants; Slovakia declared a state of emergency

Many industry experts, though, point out that the world has changed since 2009, and that there are any number of reasons why Moscow's natural gas supplies may not prove quite the potent economic and diplomatic weapon they once were.

higher than normal temperatures are forecast to continue for several weeks yet, significantly reducing demand for gas and leaving prices at their lowest for two years

since the first "gas war" of 2006, many European countries have made huge efforts to increase their gas storage capacity and stocks are high. Some countries, such as Bulgaria, Slovakia and Moldova, which lack large storage capacity and depend heavily on gas supplies via Ukraine, would certainly suffer from any disruption in supplies

New Gazprom pipelines via Belarus and the Baltic Sea to Germany (Nord Stream) have cut the proportion of Gazprom's Europe-bound exports that transit via Ukraine to around half the total, meaning only about 15% of Europe's gas now relies on Ukraine's pipelines. Gazprom is also planning a Black Sea pipeline (South Stream), expected in 2015, meaning its exports to Europe will bypass Ukraine completely. Ukraine itself has cut its domestic gas consumption by nearly 40% over the past few years, halving its imports from Russia in the process.

Europe is increasingly installing specialist terminals that will allow gas to be imported from countries such as Qatar in the form of liquefied natural gas – while Norway's Statoil sold more gas to European countries in 2012 than Gazprom did. "Since the Russian supply cuts of 2006 and 2009, the tables have totally turned," Anders åslund, an energy advisor to both the Russian and Ukrainian governments, told the Washington Post.

Europe accounts for around a third of Gazprom's total gas sales, and around half of Russia's total budget revenue comes from oil and gas. Moscow needs that source of revenue, and whatever Vladimir Putin's geo-political ambitions, most energy analysts seem to agree he will think twice about jeopardising it.

Now, the upheaval of the past two weeks has thrown Ukraine’s gas strategy into greater confusion. “There is no government and there are no agencies to do business with,” said Simon Pirani, senior research fellow at the Oxford Institute for Energy Studies. “How high up the list of priorities it is is anyone’s guess.”

Even if residential customers paid up, the Ukrainian state energy company, Naftogaz, would lose money on those sales

In 2012, many European industrial users and power plants switched to coal, and Russia agreed to renegotiate.

As a result, Ukraine ended up paying more than Gazprom’s customers in Germany, and last year Ukraine imported small quantities of natural gas from Germany and Hungary through pipelines in Slovakia and Poland, experts say. Germany buys gas from a variety of countries, but rerouted Russian gas has effectively been undercutting other Russian gas.

In South Carolina, apprenticeships are mainly funded by employers, but the state introduced a four-year, annual tax credit of $1,000 per position in 2007 that proved to be a boon for small- to medium-size companies.

“The European influence is huge,”

“I don’t deal with the exporting process. I take the order and deliver the goods to the port” in Ho Chi Minh City, she said. “The rest lies with my clients.” <img src="http://meter-svc.nytimes.com/meter.gif"/>

Because burning natural gas emits half the carbon dioxide of coal, this technology has helped the United States reduce carbon dioxide emissions to the lowest level since the mid-1990s

The Arctic Council's 2009 report estimated that the NSR offers from a 35 percent to 60 percent savings in distance for ships traveling between Europe and the Far East. Ships also can circumvent regional conflicts and the risk of piracy near the coast of Africa or in the Straits of Malacca off Malaysia.

Hiring charges for mandatory escort by Rosatomflot's icebreakers vary, but the average cost is about $200,000,

the cost of escort through the NSR is roughly equivalent to that of passage through the Suez Canal.

Because "container" shipping of goods, (as opposed to bulk shipping of raw commodities like ores and fuel), relies heavily on on-time delivery, Carmel thinks it unlikely the NSR ever will become a major pathway for this kind of global commerce.

primary focus on the 22 percent of the world's remaining undiscovered oil and natural gas resources to be found in the far north.

Just last month, Novatek signed a deal to supply China National Petroleum Corporation for 15 years with fuel sent from Yamal by tanker

The labor cost on a notebook, which is about 4 to 5 percent of the retail price, is only slightly higher than the cost of shipping by air. Soon even that is likely to change because of the twin forces of lower manufacturing costs from automation and higher transportation costs from rising global activity.

Intel, which makes most of the processors, has plants in Oregon, Arizona, New Mexico, Israel, Ireland and China.

That plant was shut in 2001, when Gateway elected to save costs by manufacturing in China. Dell, which made its mark by developing lean manufacturing techniques in Texas, closed its showcase Austin factory in 2008 as part of a companywide move to manufacturing in China. A Dell factory in Winston-Salem, N.C., for which Dell received $280 million in incentives from the government, was shut in 2010 (Dell had to repay some of the incentives).