Tuesday, 31 January 2012

Coal

Coal occupies a central position in modern human endeavors. Last year over 7000 megatons were mined worldwide. Powerful, yet dirty and dangerous, use of coal is expanding every year, with 2010 witnessing a production increase of 6.8%. Around 70 countries have recoverable reserves, which some estimates claim will last for over a hundred years at current production levels. Mining for coal is one of the world's most dangerous jobs. While deadliest in China, where thousands of miners die annually, the profession is still hazardous in the West and other regions as well. Our mining and use of coal accounts for a variety of environmental hazards, including the production of more CO2 than any other source. Other concerns include acid rain, groundwater contamination, respiratory issues, and the waste products which contain heavy metals. But our lives as lived today rely heavily on the combustible sedimentary rock. Over 40% of the world's electricity is generated by burning coal, more than from any other source. Chances are that a significant percentage of the electricity you're using to read this blog was generated by burning coal.


























































Thursday, 26 January 2012

Demonstration of Egyptians

A massive demonstration of Egyptians gathered in Tahrir Square in Cairo today to mark the anniversary of the uprising that eventually led to the ousting of President Hosni Mubarak. Political divides are still in force with liberals and Islamists differing on their visions for the future of the country. Mubarak is now on trial for complicity in the deaths of protesters. The uprising in Egypt last year was one of the initial protests of what is called the Arab Spring, which has included the slaying of Libyan leader Moammar Khadafy and the ongoing protests in Syria. 




























































Thursday, 19 January 2012

Costa Concordia cruise ship

The search continued for those still missing after the Costa Concordia luxury cruise ship smashed into a reef off the coast of Giglio, Italy, and partially sank last weekend. Eleven deaths were confirmed on Tuesday. The ship’s captain, Francesco Schettino, has been accused of manslaughter by prosecutors after he left the ship before all passengers were evacuated.