วันเสาร์ที่ 8 ธันวาคม พ.ศ. 2555

Hamas chief's Gaza visit poses challenge to Israel

Exiled Hamas chief Khaled Mashaal, left, and Gaza's Hamas Prime Minister Ismail Haniyeh upon Meshaal's arrival at Rafah crossing in the southern Gaza Strip, Friday, Dec. 7, 2012. The exiled Hamas chief broke into tears Friday as he arrived in the Gaza Strip for his first-ever visit, a landmark trip reflecting his militant group's growing international acceptance and its defiance of Israel. Khaled Mashaal, who left the West Bank as a child and leads the Islamic militant movement from Qatar, crossed the Egyptian border, kissed the ground, and was greeted by a crowd of Hamas officials and representatives of Hamas' rival Fatah party. He was also welcomed by a group of Palestinian orphans - children of Gaza militants killed by Israel in recent years - wearing military-style uniforms. (AP Photo/Suhaib Salem, Pool)



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วันเสาร์ที่ 1 ธันวาคม พ.ศ. 2555

On the pros of nuclear power

We fund research on nuclear energy today - or tomorrow we might not be able to turn off the lights

"America is addicted to oil," said George W. Bush in 2006. W was particularly concerned by the United States, but the problem is truly global in nature. Course, we do not want the former president, he also says (in the same speech): "The Americans should not fear our economic future, because we intend to shape it" - two years before the economic downturn more mass observed since the 1930s.

But Bush was due in part to oil. No matter where you stand on climate change, the world at any given time and perhaps sooner than we think, will run out of oil. According to Hirsch report, commissioned by the U.S. Department of Energy, peak oil has already occurred or is about to occur. "Peak oil" is nothing else but the world is at the peak of oil extraction from the ground, after which we will go into decline. If you are optimistic, peak oil is not soon. If you like the W and the Hirsch report, are not as optimistic, peak oil has happened or is about us and outside of some 20 years to see the effects.

short consequences of oil is much more than just not being able to drive your car to work or not be able to watch TV. Most of the hydrogen comes from the world oil cracking of useful things like motor octane or hydrogen for hydrogen storage, hydrogen for the maintenance of the global population of fertilizer fed. Hydrogen can also be produced by the decomposition of water, but it also requires energy - which often ultimately from a fossil fuel. If we are not ready when the world runs out of oil, bad things will happen.

What are the alternatives? There are many. Wind - but there must be wind, solar energy - but it should be sunny, hydro - but you need water. While many of these energy technologies are good in the short and medium term solutions often perfect local solution, what is the long term? What happens to the energy problem in general? What about nuclear? Until we develop new technologies, nuclear energy is currently the best alternative to oil.


Europe in general and Germany in particular have fallen in love with nuclear power. Angela Merkel announced a plan in 2010 to phase out nuclear power by 2021 - which marks a complete change of current energy policy of Germany. The United States, on the other hand, seems to be again seduced by the idea. Barack Obama recently announced that the U.S. Department of Energy, with none other than Bill Gates philanthrocapitalist aim to increase the number of nuclear reactors in the United States by 2022.

In all these "disasters" some stupid mistakes and oversights were made relatively painful. As expected for nearly 18 hours to flood Fukushima Daiichi seawater to cool the reactor. Potential impacts on the environment seem quite large with Chernobyl, although it is debated whether this is solely the result of radiation. In the Three Mile Island crisis, nobody was hurt = even, which is not bad for an accident. In all cases, the Three Mile Island crisis should make us feel better about the overall safety of the reactor. Great Depression, nobody died. There is an excellent book that compares the environmental and health risks associated with nuclear reactors to other sectors - energy land by William Tucker, who says that most of the deaths are due to our conventional power plants to nuclear energy.

Despite the drawbacks, the benefits of nuclear energy should not be overlooked. No oil. Nuclear fuel produces no CO


. Nuclear power plants are relatively free of accidents. There are a lot of radioactive material around today. Nuclear fuel itself is not renewable, but breeders produce more fuel than they use. The disadvantages are few, such as storage and security problems are in fact
why

governments should fund research on nuclear energy. Research funding for the production of safer reactors and containment would be best to start, but government money has to be found "blue sky" research also nuclear. Baby Blue financing pushes scientists to find a way to split the atom in the first place. It is now time to find a way to get rid of radioactive waste safely. It is now time to put some serious money in nuclear research, because in 10 years may not be able to turn on the lights.
Sylvia McLain


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