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The risks of coming up with a higher share price for Chinese social networking site Renren based on Facebook's IPO. Price to sales ratio for Renren was high at 22 before a rally, its even higher at 33, and increasingly risky. Larger operating costs and a less developed online advertising market mean Renren will barely breakeven in 2012. Sina's Weibo microblog has 200 million registered users, larger than the 137 million users for Renren at the end of third quarter 2011.

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Everything you might want to know about coffee, where it comes from, how cultivation is changing with climate change and higher temperatures, and the effort to map the coffee genome. With higher temperatures the farming of coffee moves to higher altitudes in coffee growing countries in the tropics, but it is easier to cross breed the 124 varieties to produce a plant that can withstand the change in temperatures and one that can resist fungus.  A coffee fungus and higher altitude rains destroyed much of the crop in Central America including Guatemala. This led to increased migration to Mexico and U.S. of farmers leading up to Mr. Trump's plan to have the National Guard of Mexico police Mexico's border with Guatemala.  Coffee is a sensitive plant and needs cooler weather and water which is found more in the tropics. Growing it in California or in Italy makes it very costly leading to Frinj coffee being sold in California at $16 a cup. Climate change could reduce the area where coffee can be grown by about 50% in the tropical countries from South east Asia to African countries such as Kenya, Uganda, Tanzania and Ethiopia, and in south America Colombia and Brazil, says Climate Institute, Washington DC based climate change experts.   ...

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Cold air moves to the east coast of the U.S. bringing minus 15 degrees Fahrenheit temperatures to New York on February 1, 2019. Parts of western New York will see about 2 feet of snow.

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Zoom's deal to buy an American services software company Five9 for $15 billion is under US government review because of China ties. 

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CERA estimates that while prices of crude went up 100% from 2000 to2007 the capital costs for oil exploration went up by 80%, and there are shortages of engineering and other resources.

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Marina Force of the WSJ gives this excellent report on Carles Puidgdemont, head of the Catalan party that is holding a referendum for independence from Spain in October 2017. The referendum is to be held on Oct. 1, 2017, and will be held in a tense region divided by pro and anti independence supporters, with the central government of Spain declaring the referendum illegal, and police obstructing voters. This has pushed Spain into a major crisis, as Puigdemont says he will declare independence after the vote, and the possibility that many voters may not have voted at all in this tense atmosphere. Here Marina describes the recent history of Spain that dates back to the period under General Franco's dictatorship when state rights in the Basque region, in Catalan region and in the northern region in Galicia, as well as other regions, were suppressed. Today there is regional autonomy and the languages in the regions such as Catalan are used in the autonomous regions. Prime minister Rajoy is from the Galicia region. His family suffered under Franco's dictatorship as he points out in his book- Mariano Rajoy, En confianza, Mi vida y mi proyecto de cambio para Espana. As a result Catalan leader Arturo Mas and other Spanish leaders including Rajoy from Galicia worked hard to establish autonomy for all the regions in Spain, including use of the local language in Valencia, Catalonia and the Basque region, a variation of Spanish. As in Scotland for most of the period after the end of the Franco dictatorship in the nineties, this focus on regional autonomy was seen as a big step forward. Puigdemont is journalist who was editor in chief of a Catalan newspaper in the 1980's. In 2006 he was elected to the Catalan parliament. In 2013 he was elected mayor of Girona, a city just north of Barcelona. It was in this period that the movement for Catalan independence moved forward setting the stage for the 2014 referendum with 81% voting for independence. In 2016 pro-independence parties won a majority in the Catalan parliament. This set the stage for a confrontation with the central government in Madrid that is now taking place. ...

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Indian Railways plans to modernize 199 railway stations in its first phase including new stations for Ahmedabad, Mumbai and Delhi to be completed 2-3 years.

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Analysts fear an oil shock in 2012 similiar to that in 2008. There is similiarity in the situation now and in 2008- as in 2008, the surge in oil prices comes at a time of higher tensions with Iran and shrinking spare capacity. Spare capacity is at 2.5 million barrels a day on average for January and February 2012, according to the Energy Information Administration. This compares with 3.7 millon barrels a day for the same period in 2011. Part of the reason is that global oil demand is increasing in 2012 by 1 million barrels a day, to 89 million barrels a day. Technical and political problems have shutdown another 750,000 barrels a day. The problems begin to kick in during the second half of 2012. The U.S. ban on dealing with the Iranian central bank for oil trades starts in June 2012. According to the International Energy Agency, the EU embargo and U.S. sanctions will take 1 million barrels a day of Iranian crude out of the market. The result will be that demand exceeds supply by the third quarter by 1.1 million barrels a day, according to the U.S. Energy Information Administration. Use of existing reserves in Europe, the U.S. and other countries will make up the gap. The effect will be to put pressure on oil prices. May Brent crude on the ICE Futures Europe exchange was up to $125.81 a barrel, on March 16, 2012, and prices for April delivery were at $107.06 a barrel on the New York Mercantile Exchange....

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Chernobyl nuclear disaster area in Ukraine as it is today. Cesium's half-life is 30 years and strontium's half-life is 29 years. Scientific estimates show that it takes about 10-13 half-lives, or about 300 years, for the radioactive effects to disappear and for life to return to the area. The contaminated area around the Chernobyl reactor is about 15,000 square miles or about the size of Switzerland. This place gives some idea of what can be expected for the area around the Fukushima nuclear reactor in Japan. A reporter visits this area.

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A large increase in fuel efficiency as planned by new EPA rules creates a different environment for electric cars. Current average fuel economy is 26. New rules that raise the average fuel economy to higher than 47 mpg will result in cars that conserve gasoline, reduce emissions, and make these vehicles more attractive to operate than electric cars on a cost basis, without sacrificing too much in conservation and emissions. A new study shows that achieving the increase to 47 mpg with new technologies will cost automakers about $2000 per vehicle. At $4.50 a gallon for gasoline it takes six years for a hybrid to be more cost effective than a 47 mpg car, according to this study. For a plug-in it would take 7 years and a pure electric vehicle 8 years. This suggests gasoline would have to cost more than $4.50 for electric cars to get an economic advantage. Technological breakthroughs and new technologies in electric cars which are a nascent industry at this time are not worked into these calculations. This could result in a different situation and favor the companies doing the pioneering effort to learn these technologies and develop cost effective solutions....

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After overly aggressive bank lending following the financial crisis of 2008 China is now badly overextended. China has also learned from the U.S. experience about the risks inherent in growth generated from a credit boom. In 2009-2010 China was also getting less bang for the buck in terms of the increase in lending needed to generate growth compared to earlier periods. Orlik says don't expect China to help the global economy the way it did in 2009-2011, and that there is no Plan B for China.

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US president Biden's plan for building back better, building an economy that works for America's working families is discussed here by Rev. Barber and Karen Dolan.